Samsung
Samsung Galaxy Ace 4
Samsung
Samsung Galaxy Young 2

Samsung
Samsung Galaxy Alpha

Features
Yes, Yes, Accelerometer, SMS(threaded view), MMS, Email, Push Mail, IM
Accelerometer
Yes, Yes, Yes, accelerometer, gyro, proximity, compass, Fingerprint (front-mounted), SMS(threaded view), MMS, Email, Push Mail, IM, RSS, heart rate
ANT+
Memory
4 GB internal storage, 512 MB RAM, microSDXC (dedicated slot), up to 64 GB
MicroSD, up to 32 GB, 4 GB internal storage, 512 MB RAM, microSDHC (dedicated slot)
2 GB RAM, 32 GB internal storage, No
Display
16 M colors, 480 x 800 pixels, 4.0 inches (~233 ppi pixel density), TFT capacitive touchscreen, 480 x 800 pixels, 5:3 ratio (~233 ppi density)
16 M colors, 320 x 480 pixels, 3:2 ratio (~165 ppi density), TFT, 256K colors, 3.5 inches, 36.5 cm2 (~55.5% screen-to-body ratio)
16 M colors, 720 x 1280 pixels, 720 x 1280 pixels, Super AMOLED capacitive touchscreen, Corning Gorilla Glass 4, 16:9 ratio (~312 ppi density), 4.7 inches (~320 ppi pixel density)
Battery
Up to 11 h (3G), Up to 53 h, Li-Ion 1500 mAh, removable
Li-Ion 1300 mAh, removable
Up to 11 h (3G), Up to 350 h (3G), removable, Up to 37 h, Li-Ion 1860 mAh
Selfie Camera
VGA
-
2.1 MP
Main Camera
720p@30fps, LED flash, panorama, 5 MP, AF
3.15 MP, 480p@24fps
HDR, panorama, LED flash, 4K@30fps, AF, 720p@120fps, 1080p@60fps, 12 MP, 31mm (standard), f/2.2