Samsung Galaxy S6
Key features
Thin (6.8mm) profile, premium dual-glass design reinforced by a metal frame
5.1" Super AMOLED of QHD (1440 x 2560) resolution, class-leading ~577ppi, Corning Gorilla Glass 4
Exynos 7420 64-bit chipset, octa core processor with four 2.1GHz Cortex-A57's and four 1.5GHz Cortex-A53 cores, Mali-T760 MP8 GPU, 3GB of RAM
Android 5.0.2 Lollipop with TouchWiz and Samsung Pay
16MP camera, f/1.9 aperture, 4K video recording, LED flash, optical image stabilization
5MP front-facing camera, f/1.9 aperture, QHD video, HDR
32/64/128 GB of built-in storage
Active noise cancellation via dedicated mic
Fingerprint scanner
LTE Cat.6, Wi-Fi a/b/g/n/ac, GPS/GLONASS/Beidou, NFC, IR port, Bluetooth 4.1, ANT+
Heart-rate sensor, barometer, SpO2
Wireless charging (Qi/PMA)
2,550mAh battery
Main disadvantages
No water or dust protection
Rather pricey at launch, including really steep memory upgrade premiums
No user-replaceable battery
No microSD slot
No FM radio
No stereo speakers