Compare Apple iPhone 6 vs Samsung Galaxy S6

Specifications
Key Specifications
Display Size 4.7 inches 5.1 inches
Operating System iOS 8, upgradable to iOS 11.4.1 Android 5.0.2 (Lollipop), 7.0 (Nougat), planned upgrade to Android 8.0 (Oreo)
RAM 1 GB RAM DDR3 3 GB RAM
Rear Camera 8 MP 16 MP
Battery Capacity Non-removable Li-Po 1810 mAh battery (6.9 Wh) Non-removable Li-Ion 2550 mAh battery
General Features
Release Date 2014, September 2015, March
SIM Support Nano-SIM Nano-SIM
Phone Dimensions 5.44 x 2.64 x 0.27 in 5.65 x 2.78 x 0.27 in
Phone Weight 129 g 138 g
Operating System iOS 8, upgradable to iOS 11.4.1 Android 5.0.2 (Lollipop), 7.0 (Nougat), planned upgrade to Android 8.0 (Oreo)
Display
Screen Size 4.7 inches 5.1 inches
Screen Resolution 750 x 1334 pixels 1440 x 2560 pixels
Screen Type LED-backlit IPS LCD, capacitive touchscreen, 16M colors Super AMOLED capacitive touchscreen, 16M colors
Screen Protection Ion-strengthened glass, oleophobic coating Corning Gorilla Glass 4
Memory
Internal Memory 16/32/64/128 GB 32/64/128 GB
RAM 1 GB RAM DDR3 3 GB RAM
Card Slot No No
Performance
Processor Dual-core 1.4 GHz Typhoon (ARM v8-based) Octa-core (4x2.1 GHz Cortex-A57 & 4x1.5 GHz Cortex-A53)
GPU PowerVR GX6450 (quad-core graphics) Mali-T760MP8
Battery
Type Non-removable Li-Po 1810 mAh battery (6.9 Wh) Non-removable Li-Ion 2550 mAh battery
Camera
Front Camera 1 5 MP
Front Flash Light No No
Front Video Recording 720p@30fps 1440p@30fps
Back Flash Light Yes Yes
Back Camera 8 MP 16 MP
Back Video Recording 1080p@60fps, 720p@240fps 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 (Apple Pay only) Yes