Compare Samsung Galaxy S7 vs Samsung Galaxy S6

Specifications
Key Specifications
Display Size 5.1 inches 5.1 inches
Operating System Android 6.0 (Marshmallow), upgradable to Android 8.0 (Oreo) Android 5.0.2 (Lollipop), 7.0 (Nougat), planned upgrade to Android 8.0 (Oreo)
RAM 4 GB RAM 3 GB RAM
Rear Camera 12 MP 16 MP
Battery Capacity Non-removable Li-Ion 3000 mAh battery Non-removable Li-Ion 2550 mAh battery
General Features
Release Date 2016, February 2015, March
SIM Support Single SIM (Nano-SIM) - G930FHybrid Dual SIM (Nano-SIM, dual stand-by) - G930FD Nano-SIM
Phone Dimensions 5.61 x 2.74 x 0.31 in 5.65 x 2.78 x 0.27 in
Phone Weight 152 g 138 g
Operating System Android 6.0 (Marshmallow), upgradable to Android 8.0 (Oreo) Android 5.0.2 (Lollipop), 7.0 (Nougat), planned upgrade to Android 8.0 (Oreo)
Display
Screen Size 5.1 inches 5.1 inches
Screen Resolution 1440 x 2560 pixels 1440 x 2560 pixels
Screen Type Super AMOLED capacitive touchscreen, 16M colors Super AMOLED capacitive touchscreen, 16M colors
Screen Protection Corning Gorilla Glass 4 Corning Gorilla Glass 4
Memory
Internal Memory 32/64 GB 32/64/128 GB
RAM 4 GB RAM 3 GB RAM
Card Slot microSD, up to 256 GB (uses SIM 2 slot) - dual SIM model only No
Performance
Processor Octa-core (4x2.3 GHz Mongoose & 4x1.6 GHz Cortex-A53) Octa-core (4x2.1 GHz Cortex-A57 & 4x1.5 GHz Cortex-A53)
GPU Mali-T880 MP12 Mali-T760MP8
Battery
Type Non-removable Li-Ion 3000 mAh battery Non-removable Li-Ion 2550 mAh battery
Camera
Front Camera 5 MP 5 MP
Front Flash Light No No
Front Video Recording 1440p 1440p@30fps
Back Flash Light Yes Yes
Back Camera 12 MP 16 MP
Back Video Recording 2160p@30fps, 1080p@60fps, 720p@240fps, HDR, dual-video rec. 2160p@30fps, 1080p@60fps, 720p@120fps, HDR, dual-video rec.
Connectivity
Bluetooth Yes Yes
3G Yes Yes
4G/LTE Yes Yes
Radio No No
WiFi Yes Yes
NFC Yes Yes