Screen Replacement Question [7 inch Screen]

Hi All I was thinking of converting my screen broken S3 into a InDash car pc. SO I need 2 din/~7inch touch screen to attach to s3 instead of regular samsung s3 screen.
My doubt is if I buy something from ebay/amazon any other place, I'm not sure, if I'm going to get something compatible with s3. So anyone has idea of s3 lcd connectors please comment.

LANDVO L500S, 5 Inch, 3G, MT6592M, FWVGA 5MP Camera, 1800 mAh

The Cheapest Octa core 5" 1Gb ram on the market.
65$ or less than 60€ on Gearbest.com

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Landvo L500S MT6592M Octa Core 1,4Ghz 1GB RAM 8GB ROM 5.0MP Rear Camera
Display: 5 inch 854x480
CPU: MT6592M Octa Core 1,4Ghz
System: Android 4.4.2
RAM + ROM:1GB RAM 8GB ROM
Camera: 2.0MP front camera + 5.0MP f/2.8 back camera
Bluetooth: 4.0
GPS: GPS, A-GPS
Sensors: Gravity sensor, Proximity sensor, Ambient light sensor
SIM Card: Dual SIM dual standby, 1 Mini Sim 1 Micro SIm  + MicroSD up to 64Gb
Network:
2G: GSM 850/900/1800/1900MHz
3G: WCDMA 900/1900/2100MHz

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My UNBOXING e REVIEW (Italian Language):

Elephone Trunk, Snapdragon 410, 5 Inch IPS HD, Android 5.1, 4G LTE

Again a new model from Elephone, this time using the Snapdragon 410.
Some say that "Trunk" will be a new sub-brand of Elephone.

Just like "Huawei" for example has the "Honor" name.

Specifications are:

- 5.0 inch screen, 1280 * 720 pixels
- Qualcomm Snapdragon 410 MSM8916 1.2 GHz quad core
- 2 GB RAM + 16 GB ROM
- 13MP main camera + 2MP Front Camera
- Android 5.1 system
- Network: GSM 850/900/1800/1900 MHz, WCDMA 850 / 900 / 2100 MHz, FDD-LTE B1/B3/B7/B20
- Supports 2 G & 3 G & 4 G LTE Network
- Various cool colours!

More info on the manufacture page: http://www.elephone.hk/trunk.html

iMacwear i6 Bluetooth 4.0, Round watch,1.22 Inch IPS Screen, IP67, MTK2502

iMacwear i6 Bluetooth 4.0 ROUND Smartwatch - 1.22 Inch IPS Screen, IP67 Waterproof, MTK2502A-ARM7, G-Sensor (Silver) .99.


ChinaVasion Specs here.

Also:

ZGPAX S360 Smart Watch - 1.22 Inch Circular Screen, Bluetooth 4.0, Sleep Monitor, Sedentary Reminder, Android + iOS (Silver)

Very Similar, specs.

NO SIM in either watch.

any way to unbrick hard bricked kindle fire hdx 7 inch ?

is there any way to unbrick it or am i just wasting my time ?