Samsung Gear S2 vs Samsung Galaxy Gear 2 vs Samsung Gear S3

BASIC INFO
Model No - - Gear S3 classic
Status release 2015, September - Available
Release Date 2015, August - Released 2016, November
Dimension 49.8 x 42.3 x 11.4 mm (1.96 x 1.67 x 0.45 in) - 49 x 46 x 12.9 mm (1.93 x 1.81 x 0.51 in)
Weight 47g - 59 g (2.08 oz)
Colors Jet Black, Mocha Gray, Wild Orange, Oatmeal Beige, Rose Gold, and Lime Green Jet Black, Mocha Gray, Wild Orange, Oatmeal Beige, Rose Gold, and Lime Green Various
Body Metrial Stainless Steel - -
W & D Proof Yes - Yes
SIM Type No - No
Technology - - No cellular connectivity
OS Tizen operating system. Android OS, v4.3 (Jelly Bean) Tizen-based wearable platform 2.3.2
PROSESSING
Processor Dual core 1 GHz Cortex-A7 Dual-core 1 GHz Dual-core 1.0 GHz
Chipset Exynos 3250 Dual - Exynos 7270
GPU Mali-400MP2 - -
MEMORY
RAM 512 MB - 768 MB
Storage 4 GB - 4 GB
Card Slot - 4 GB on board storage, 512 MB RAM No
DISPLAY
Size 1.2 inch 1.63 inch 320�320 display 277 PPI 1.3 inches
Type Super AMOLED capacitive touchscreen, 16M colors Super AMOLED touchscreen, Super AMOLED touchscreen, Always-On display, Rotating Bezel
Resolation 360 x 360 Pixels - 360 x 360 pixels
PPI 302 ppi - 278 ppi density
Multi touch Yes - Yes
Protection Corning Gorilla Glass 3 - Corning Gorilla Glass SR, Always-on display
CAMERA
Primary - 2 megapixel camera located in the watch band No
Video - - -
Flash - - -
Features - - -
Selfie - - No
BATTERY
Battery 250 mAh battery 400 mAh battery Li-Ion
Capacity - - 380 mAh
Removable - - Non removable
StandBy - - -
Talk Time - - -
Music Play - - -
Browsing - - -
Video Playback - - -
F Charging - - Yes
W Charging - - Yes
NETWORK
2G Network GSM 850 / 900 / 1800 / 1900 - No cellular connectivity
3G Network HSDPA - No cellular connectivity
4G Network - - -
Speed - - -
5G - - -
CONECTIVY
WALAN Wi-Fi 802.11 a/b/g/n/ - Wi-Fi 802.11 a/b/g/n/
BlueTooth Bluetooth 4.1 Bluetooth 4.0 4.2, A2DP, LE
USB microUSB v2.0 - No
GPS Yes, with A-GPS and S GPS support and GLONASS - Yes, GLONASS
NFC - - Yes
Audio jeck - - -
OTHERS
Sensors - - Accelerometer, Gyro, SpO2, Heart Rate, Barometer
Radio - - -
SARUS - - -
SAREU - - -
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