Related
Lol this might be a dumb question but ive been lookin around and no answer... my logic tells me its the same thing but my curiosity keeps askin is there any difference? soo with that said is there any difference?
G1 Specs
Processor Qualcomm® MSM7201A™, 528 MHz
Operating System Android™
Memory
ROM: 256 MB
RAM: 192 MB
Dimensions (LxWxT) 117.7 mm x 55.7 mm x 17.1 mm
(4.60 in x 2.16 in x 0.62 in)
Weight 158 grams (5.60 ounces) with battery
Display 3.2-inch TFT-LCD flat touch-sensitive screen with 320 x 480 (HVGA) resolution
Special Features Digital Compass, Motion Sensor
Touch HD Specs
Model HTC Touch HD™ T8282
Processor Qualcomm® MSM 7201A™ 528 MHz
Operating System Windows Mobile® 6.1 Professional
Memory
ROM: 512 MB
RAM: 288 MB
Dimensions 115 mm x 62.8 mm x 12 mm
(4.35 in x 2.5 in x 0.47 in)
Weight 146.4 grams (5.164 ounces) with battery
Display 3.8-inch TFT-LCD flat touch-sensitive screen with 480 x 800 WVGA resolution
Special Features FM Radio, G-Sensor
What is the difference?
G-sensor is a gyroscope, in other words an orientation sensor.
motion sensor is more accurate, it MAY or MAY not have G-sensor's capability, this depends on the software implementation. but the hardware itself is capable of detecting and reacting to all kinds of movement.
G-sensor needs _relatively_ sudden movements to activate the gyroscope (think of a marble in box), if the phones (the box) is in landscape, and you tilt it to portrait, the gryo detects it (ie marble rolls to one side). However, if you keep the phone/box's orientation the same, and move the phone closer or further from you (assumign you ar eholding the phone): now if you move it slowly, the marbles won't roll, this is g-sensor. becaue it can't detect this movement. but if you suddenly jerk the phone/box, even if the orientation is the same, the g-sensor should detect it (ie the marble will move). ummm.. just like those dice games on iphone/itouch (if you 've seen the latest itouch commercial).
motion sensor detects all kinds of movements, it's only up to the software to decide if all functionalities are implented or only "up till" the G-sensor capabilities are implemented or something else. best example, G1's compass view, slow movement with the phone in the same orientation will pan around the map.
that being said even the motion sensor has its limits, if you move the phone uber slowly, i bet it won't detect the motion, unless it's military grade (read: 007 gadget ), if that's the case, then i don't think the phone would be $179 either
buggybug0 said:
G-sensor is a gyroscope, in other words an orientation sensor.
motion sensor is more accurate, it MAY or MAY not have G-sensor's capability, this depends on the software implementation. but the hardware itself is capable of detecting and reacting to all kinds of movement.
G-sensor needs _relatively_ sudden movements to activate the gyroscope (think of a marble in box), if the phones (the box) is in landscape, and you tilt it to portrait, the gryo detects it (ie marble rolls to one side). However, if you keep the phone/box's orientation the same, and move the phone closer or further from you (assumign you ar eholding the phone): now if you move it slowly, the marbles won't roll, this is g-sensor. becaue it can't detect this movement. but if you suddenly jerk the phone/box, even if the orientation is the same, the g-sensor should detect it (ie the marble will move). ummm.. just like those dice games on iphone/itouch (if you 've seen the latest itouch commercial).
motion sensor detects all kinds of movements, it's only up to the software to decide if all functionalities are implented or only "up till" the G-sensor capabilities are implemented or something else. best example, G1's compass view, slow movement with the phone in the same orientation will pan around the map.
that being said even the motion sensor has its limits, if you move the phone uber slowly, i bet it won't detect the motion, unless it's military grade (read: 007 gadget ), if that's the case, then i don't think the phone would be $179 either
Click to expand...
Click to collapse
in other words motion sensor is better than the g sensor n that is super crack juice i was a lil worried there cause i thought g sensor would be better for some reason but thanks alot now i know something i didnt... thanks =)
In general, these are the same thing. They use a part called an Accelerometer, which measures acceleration, or the forces exerted on a mass within a chip. The force of gravity pulls it in a certain direction with 1G of force, so that's how things like the iphone can detect what orientation it's in, by looking for which direction gravity is.
By shaking the device or moving it, you also exert forces on the mass inside, and cause it to register different forces in different directions, which are reported to the OS in 3 axis.
Notebooks use the same tech to know when to park the heads. If the accelerometer suddenly sees that there is no gravity anymore, it assumes that it is moving towards the ground and will then park the heads of the drive to prevent damage.
"Motion Sensor" and "G Sensor" are the same thing, just showing that the chip can detect when it's being moved.
Correct, motion sensor and G sensor refer to the same device (accelerometer).
There is no difference apart from the name.
I have looked in every menu as far as I know, and I do not find the compass anywhere.
There are actually two "motion" sensors on the G1.
The first is the accelerometer, similar to the iPhone. It detects motion by changes in gravity on three axes. This does not mean the phone has to make big movements to detect anything. The force of gravity is, in part, determined by the distance between two objects, so the phone does not have to move for the sensor to get a reading.
The second is a digital compass, I think that there's a Nokia that has one but the iPhone does not. This, as the name implies, reads the earth's magnetic field and determines which way the phone is pointing.
I'm working on an app that will use both of these to allow the user to examine a virtual 3D object.
Actually I finally found it. It is not called 'compass mode' as advertised. You go into maps - then street view. It will say searching I think .. then you touch the spot it tells you to and there you are .. walking down the street. I don't know how often the pictures are refreshed, but must be fairly recent because I can see that I need to get my lawn mowed !!! of course .. it seems I always need to do that with all the rain here in florida, but I would rather play with my toys.
theonlynickleft said:
Actually I finally found it. It is not called 'compass mode' as advertised. You go into maps - then street view. It will say searching I think .. then you touch the spot it tells you to and there you are .. walking down the street. I don't know how often the pictures are refreshed, but must be fairly recent because I can see that I need to get my lawn mowed !!! of course .. it seems I always need to do that with all the rain here in florida, but I would rather play with my toys.
Click to expand...
Click to collapse
Why you are in that screen hit menu and compass mode is in the bottom lower right corner and will react to your movements.
Thanks ... fouund it!
On a black background is a white dot, but on a white background it is not visible.
Dead pixel?
Yep. That's what is usually called a "stuck pixel", in opposition to dead pixels which are always black.
it means that it is possible to fix it?
AFAIK, no, it's not possible. But pixels on the HD2 are small, you will probably get used to this. I have a stuck subpixel (not a full pixel, when the screen is all black I have a green dot), and I am unable to notice it unless I look for it very carefully. Forget it and your eyes won't be meeting it more than once a month.
Hey guys check this post out, I think you both might want to read this, very smart guy member facdemol.
http://forum.xda-developers.com/showpost.php?p=12670084&postcount=18
thanks for quoting T-Macgnolia.
yep, as i explained on those 2 posts in that topic one single pixel on hd2 screen's working with something like theese
- 3 subpixels
- each subpixels is made up of a pair of liquid crystal and driving transistor
- each transistor is linked to a processing chip (it organizes the screen into columns and rows, and drive them separately)
- each processing chip (the ones that trigger columns and the ones that trigger lines) are linked to a lvds bridge (that's some sort of protocol used to communicate to the gpu's analog output).
- gpu or other video processing subsystem
How to recognize various hardware failures occuring to the screen:
- white screen (nothing displayed) - this is pretty serious. As i've posted on my other topic, the crystals in the screen are normally transparent. If you apply various electric signals the matrix will actually produce colors by blocking various light wavelengths. If you get a white screen and you have already determined somehow it's not related to software issues, this most probably means faulty lvds bridge or connector (the display connector). Because the lvds is not communicating with column and row processing crystals - nothing is displayed on the screen. Entire matrix is powered off. Another cause can be a faulty GPU or video subsystem. If no video signal is being sent, the matrix will be also powered down. With crystal in their natural state, they will be transparent, thus - white light. Not user fixable, each part must be diagnosed, special equipment required.
- screen working but color lines appearing on the display or permanently there. You may have seen a laptop or tv doing this. The display works but there are some strange lines that are permanently there and either don't change color, or change it in a strange way. This happens when you have a faulty row or column driver. If that chip fails - all mosfet transistors that drive pixels in that region of the display will either stop working or work in an erratic way. Thus you get... a line (vertical or horizontal) on the display. Not user fixable, in 80% cases it requires another display as the faulty chip is in most cases embeded into the display module itself.
- screen works but with strange colors (inverted, red-ish, blue-ish or whatever). The lvds bridge - that feeds video signal to the processing chips on the display, contains a small subsystem called contrast & crominance setting. It's fixed on most displays (although i found some older pda's where this can be fine tuned). Simply put it's a small circuit made up of a negative voltage driving a PNP junction bipolar transistor working in a voltage divider circuit. The divider will actually... well.. divide the voltage across it and these 2 voltage resulted (together summed they give up the original voltage) are required for each corresponding column and row controller chip to know how to bias the pixel matrix. If you bias the matrix to hard (larger voltages makes the transistors to switch at smaller imput levels, so they are triggered more easier) the crystals will change transparency level faster, thus you will get a darker screen or strange colors. If in a normal situation you will need 0.3Volts to drive a subpixel to fully block light (on it's specific wavelength) a harder biased matrix will require only 0.2V - for example. However as the voltage varies from 0 to 0.3volts in a normal case of color reproduction by a subpixel, you reduce the maximum range by forcing the corresponding mosfet transistor to do at 0.2volts what is was supposed to do at 0.3volts. The GPU and LVDS bridge will still send signal from 0 to 0.3 but the display's transistors won't display anything different from 0.2 to 0.3 range. Thus you get color alterations. If you find this problem in a display, it means this specific subsystem (contrast/crominance) has either failed or it's drived improperly. Inverted colors means the transistor in the crominance block is actually either dead or has a faulty connection. Instead of driving the display with 0.3 volts it used -0.3 voltage. All hell breaks loose. By no means user fixable. This subsystem is also located on the display module level. Older pda's or smartphones have this thing mounted on the ribbon cable coming out from the LCM itself. Those have a chance to be repaired without changing the display.
- white spots on the display. Most visible on white background. I repeat, spots, not bunch of little points (pixels). Those areas will still display colors, but with some distorsions. I didn't covered these when explaining the lcd display hardware. Well simply put the problem is like this. LCD backlights are made up from small white led's. However, the problem is that a led is a point like light source. Light is more intensive near the led and decreases as you move further. So, if led's were simply placed on the bottom of the screen , the upper part will be darker or the backlight won't be evenly spread. In order to solve this, manufacturers use some sort of polarizing filters in order to deflect light and "move" it more effectively. 2 polarizing filters are used, they are 2 foils containing some veeery small mirror like material that reflects light only when it passes though them at a specific angle. By using 2 filters (horizontal/vertical) and other specific materials, the backlight assembly can spread the light produced by 3-4 small leds on the whole screen surface. The foils are placed together in contact with each other and their final role is to direct the light straight into the display's matrix in order to fall vertically over the liquid crystals and through them - to you. IF however the backlight assembly is damaged due to mechanic shocks for example, those thin foils can bend or change their original orientation. Because of that, light won't be diverted vertically, won't pass though the crystals at the correct angle and thus.. you'll see spots on the screen. Another way for this problem to occur is water or dirt getting into the backlight assembly. Both can affect either the orientation of the polarizing filters or simply leave dirt on them. Either by mechanic shock or dirt, this problem can appear. I have a samsung omnia with this problem, i heard about 1/4 of them have it due to poor design of the phone's case against mechanic shocks.
Not user serviceable. I disassembled laptop screens in order to repair them or to change polarizing filters but it's a very stressful job. The smaller the screen the harder to repair it. I don't think it's even possible to find replacement backlight modules for phone screens. You either have to live with the problem or change the display.
- bad pixels. If you see a color dot (they are either green, red, blue or combinations of these) you have either one or couple of "dead pixels/subpixels". If you see a white/black dot - you have a full dead pixel. Well, what's happening there?
- single color dot. - damaged subpixel. This is basically a mosfet transistor that's blocked into conductive state and can't switch off. The pixel is working (not dead) but can't be turned off or assume variations in displayed color.
- single black dot - if all 3 subpixels that form a pixel are having the problem above, you get a black dot.
- single white dot - 3 dead subpixels. No power is getting in. Either 3 transistors commanding 3 subpixels (one pixel) are incapable of switching on or their 3 crystals are incapable of changing their state (rare scenario). In most cases, we get this from transistor failure.
- bunch of color dots - if they are located in close distance to each other, suspect a mechanical shock to the matrix. If they form a geometrical shape, suspect logical damage (transistors improperly driven or simply not powered on at all). If the pixels form a line across the screen - well, you diagnosed the problem incorrectly, those aren't your usual "dead" pixels, see above - you may have a row/column controller chip problem.
Dead pixel - user fixable? In some rare situations (i mean .. pretty rare) varying the screen content very fast is a way of attempting to unblock a locked transistor. In some lucky cases this will solve the problem. I had some success some time ago, in some cases it worked after couple of hours of displaying those rapid moving/alternating colors, in other cases it worked but the problem pixel got stuck again after some couple of weeks, in most cases it never worked at all. Worth a shot, couldn't harm to try. There are programs that do this job for you, something like "dead pixel fixer" or do a search on either marketplace or google for an app for your OS.
These are the most common problems with LCD displays (all sizes). Of course there are the "exotics" but most people will never see one. As you can see, there is not much to do or repair with smaller phone screens. No replacement subcomponents, too small...
TV screens for example can be disassembled and various components replaced or repaired individually. Hope it helps or gives you something to read in the morning when drinking your coffee.
Hey facdemol thanksfor that very informative post. As I have said before you are the man.
[size = "6"]REVIEW POWERED BY[/ b][/ size]
Oukitel A28 SmartWatch[/ b][/ size][/ url]
Presentation:
At this time when all the major brands have their own Smatwatchs, Oukitel launched the A28, in order to take advantage of the attention that this type of equipment begins to arouse. Well, I had the opportunity to spend some time with the SmartWatch, and now we're back with my analysis to the Oukitel A28.
Specs
The Oukitel A28 features a 1.54 "display IPS with a resolution of 240 * 240, the processor is a MediaTek 2502A has 128mbs of RAM, has 32mbs of internal memory, and has a battery of 250mAh. The Outikel A28, uses Bluetooth 4.0 to communicate with our mobile phone. Additionally, also has a pulse sensor, Pedometer. Besides it has a speaker and a micro integrated so that we can communicate through it.
Along the packaging, have a micro-USB cable, the charging base and the manual.
Aspect
One of the most important things when buying a watch, is the look of it.
The Oukitel A28, being a smartwatch, is very light, only 58g, has its housing constructed of aluminum, I think the look is quite well done. For this, much contributes fully chromed bezel and leather strap.
The version we received has the silver bracelet with black leather strap, and there is also a version with the bezel in gold and a brown leather strap.
There is only one button which is on the right side of it, that serves to turn the clock display, and to go back to the previous menu.
At the rear we find one of the points that distinguishes this smartwatch of the other Chinese competitors, the pulse sensor.
The IP53 certification, ensures that we can use the watch normally, since this is sweat and splashes resistant, so we can wash your hands with it in place, or use it while it rains, however, must be removed for bathing.
Features
The Oukitel A28, allows us to receive and make calls, read messages, view notifications of any program me may have installed on our mobile phone, etc. Navigation through the menus is extremely simple, swipe your finger across the screen to the left or right to scroll through the menus, from the bottom up or top to go back to Clock.
Its use for calls, works relatively well, the sound of the integrated speaker is quite loud and perfectly perceptible, even in noisy environments, the micro, is not that good, for us to be understood by those who are hearing us, it is necessary to approach it to the mouth, or speak a little louder, no need to shout, but we are not that far from needing to do so.
Reading messages is extremely simple, since the message we receive is automatically appears on the screen when we turn it on, but the answers are limited, contrary to what happens to the vast majority of smartwatchs I have seen, the Oukitel A28, does not allow us to writing any type of text, instead, there are a set of pre-defined messages that can be sent in response.
Although not a device with android wear is compatible with some of the Google program, such as Fit, when connecting the smartwatch the phone, the phone automatically starts Google Fit, and monitors our movements, subsequently giving an indication of the time "exercise" or walk.
In addition to these functions, you can use the Oukitel A28 to locate your phone, as Alarm or Calendar, we can control the playback of music on our mobile phone, besides we can use the Oukitel A28 to operate the camara of our mobile phone, and We can view on the smartwatch screen what the camera is capturing. We still have the Sound Recorder, and Calculator.
Pedometer and Pulse Sensor
The smartwatch are aiming for the market of fitness and exercise, and the Oukitel A28 is no different, despite having an aspect that wouldn't be suitable for a gym or a jogging, it has some features that make it a good companion for such situations.
The Pedometer in the Oukitel A28, is fairly accurate, and contrary to other models is not easy to deceive, wave your arms in a chair does not make account more steps, and calculating the distance traveled is quite accurate.
Another very interesting feature is the Pulse Sensor, there are few devices that provide one, which is integrated in Oukitel A28, is surprisingly accurate, as you can see on the photo.
Bluetooth, Battery and MediaTek Smart Device
A smartwatch without connection to a mobile phone is as smart as a normal watch. So it is critical that the Oukitel can connect easily.
The A28 Oukitel using the Bluetooth 4.0 can connect the any equipment android or apple, then simply install the software from Mediatek so we can to ensure the use of all potential of the clock.
The Bluetooth connection ensures a range of about 10m without the sound start to lose quality, and until this distance you can use the smartwatch to make call without any kind of problems, more than that and we began to have some cuts both in sound we hear as the sound we send , despite continuing to be able to use the smartwatch to take pictures or to locate your phone.
The battery despite having a small size gives good length, connected to a mobile phone with a lot of use lasts about two days, more than that, only if we do not use any of the sensors, such as pedometer, or the pulse sensor, and if we only use the smartwatch for incoming calls and notifications, managed to get to about three days, but it is not exactly easy.
One of the advantages of having a small battery is that it charges quickly, it takes just 20 minutes for the battery reaches the maximum load , which is great, since it turns out to compensate for the fact that a relatively short duration.
The charging base is a necessary evil, since this is a device with IP53 certification, which is resistant to sweat and water splashes, placing a micro-USB port for charging, would create an opening in the box that let in water.
The Smart Device MediaTek is the software that we have installed in our mobile phone in order to use all the functions of the smartwatch, otherwise, is limited to being a speakerphone on the wrist, and read messages.
The Smart Device MediaTek can later install new software for these devices at this time is only possible to install the Yahoo Weather in order to see the weather in the smartwatch, Digital Clock which is another skin for the clock, and Codoon that is a program that Chinese social networks, so for us little use.
With MediaTek Smart Device installed we can also manage the type of notifications that will appear on the wrist, so the Oukitel A28 will just give the signal that we consider important.
Evaluation and Final Thoughts
Pros:
- Very good build quality with a premium appearance;
- Very precise pulse sensor;
- Connection to the mobile phone is excellent ;
- Price;
Cons:
- The lack of more skins at the clock, there are only 4;
- Failure to respond to messages with a written text, being forced to use that come pre set from factory.
If you are looking for a smartwatch with a premium appearance, with a low cost, and can offer a very good quality of construction, in addition to some extra features, this may be the smartwatch suitable for you.
I want to thank Antelife for having provided this equipment to be tested, and could share my opinion with you.
For those who are interested in purchasing this excellent machine can follow the link below.
[url="http://www.antelife.com/oukitel-a28-mt2502a-1-54-inch-ips-bluetooth-4-0-smart-watch-heart-rate-monitor-support-health-tracking-smart-reminding-silver.html"]Silver and black [/ url]
[url="http://www.antelife.com/oukitel-a28-mt2502a-1-54-inch-ips-bluetooth-4-0-smart-watch-heart-rate-monitor-support-health-tracking-smart-reminding-gold.html"]Gold and brown. [/ url]
I bought the Atongm W013 from efox and it arrived on September 2.
I only have it for one day so i will post first impressions and hopefully i will follow with further info.
Design :
The watch is slim and light , weighing 60 grams, it sits very comfortable on the wrist. The leather feels real and it should fit most people.
There is black outline of the screen is visible. The clasp feels plastic. The button on the side (rotating) seems sturdy but if it will hold, only time will tell.
The metal is prone to smudges.
The transflective screen is good. You can see the time clearly in almost all conditions. The lcd screen seems to have a low dpi and dull colors, which i suppose, is a consequence of the tech behind transflective.
Hardware:
You can find most of the specs on internet i cannot verify at the moment anything. If someone knows of an apk (or adb shell command) that will allow me to check this, please advise. Note: it must work on Indroid!
There is one button that acts as on/off/stby/wake switch and an invisible capacitive button on the bottom right corner of the screen which acts as BACK.
The touchscreen is responsive and feels ok. You can type on the onscreen keyboard with greatest ease than with the ZGPAX S8 i have.
The software:
It runs on a version of android 4.3 named Indroid. The firmware on mine is v1.6-x2-hwv1.1.0-20150402.
The heart rate and step counter work as expected: not accurate but close enough. Both functions DO NOT work on the background, which is plain lame. Once you press back it stops counting.
The companion app did not work for me when i was running CM12.1 on my galaxy s4 (i could no install it). I think it has problems running on ART. I downgraded to 4.4.4 and it works flawlessly so far.
Notifications work nice, the screen lights up automatically and the notification text is displayed in size 10 letters.
The vibration on the watch is perfect. Not to strong not to weak.
Audio is weeeeeeaaaaak. The speaker is on the back side of the watch and i can barely hear anything.
The settings allow some developer options but are very limited compared to normal android.
Ingenic provides an adb driver for the watch that works fine and i have been able to get root through adb and perform basic ops.
The watch faces are 8. 7 of them is -imho- crap and one (the digital display) is nice.
Remote control camera works but with some lag.
Remote music control, find my phone, weather, contacts sync, sound recorder and calendar work fine.
Overall:
Very happy. I payed 60 euro and it is totally worth it. I already have the ZGPAX S8( heavily modded both soft and hardware) which i use for my runs. So i wanted an elegant watch that i could wear at work and get notifications for calls,sms and mail. Most people do not notice that this is a smartwatch until i tell them and then most of them ask if it is the apple watch.
If this guys could come up with a decent firmware that would allow some sensible use of the sensors (like heart rate transmission through BT to phone, or heart rate sampling every 30 minutes to present data ,or just keep the step counter...counting) it would be better.
Hi, I got the same smartwatch yesterday. I have the Prob to find an App for sync to my smartphone. The Link of QR Code isn´t exist. Where can I found the sync App. Please help me. Thanks.
Hello there!
I'm about to buy a amazfit stratos 2 because I'm unable to find any other watch that has Android Wear and a proper LCD always on display like the Stratos or Pace has.
Does anybody knows any other smart watch that has this always on feature?.
I mean full color always on screen, not like the OLED screens that goes mutilated when always on power saver kicks in, like this pic.
https://i.ytimg.com/vi/C7o5r9zUd7k/maxresdefault.jpg
Thanks!
Almost all Garmin watch look at the Vivoactive 3
But garmin watches are not Android Wear, are they?