Category Breakdown
Samsung Galaxy Express Prime
Samsung Galaxy S II Skyrocket HD I757
Performance
54.351.3
Camera
42.042.1
Display
79.579.5
Battery
43.543.5
Build
70.870.8
Overall
56.355.4
Summary
- The Samsung Galaxy Express Prime, released in 2016, features a 5.0-inch Super AMOLED display with a resolution of 720 x 1280 pixels, while the Samsung Galaxy S II Skyrocket HD I757, from 2012, has a slightly smaller 4.65-inch Super AMOLED display with the same resolution but higher pixel density at ~316 ppi.
- In terms of performance, the Express Prime is equipped with a quad-core 1.3 GHz processor and 1.5GB of RAM, compared to the dual-core 1.5 GHz processor and 1GB of RAM in the Skyrocket HD.
- The camera capabilities also differ, with the Express Prime offering a 5 MP rear camera and 720p video recording, while the Skyrocket HD boasts an 8 MP rear camera with 1080p video recording.
- Battery capacity is 2600 mAh for the Express Prime, whereas the Skyrocket HD's battery specifications are not provided.
- Software-wise, the Express Prime runs Android 6.0 (Marshmallow), while the Skyrocket HD operates on the much older Android 2.3.5 (Gingerbread), indicating a more modern software experience on the Express Prime.
Side-by-side Specification Comparison
Samsung Galaxy Express Prime
Samsung Galaxy S II Skyrocket HD I757
General
Release Date
2016
2012
Announced
2016
2012
Description
N/A
For AT&T.
Display
Size
5"
4.65"
Type
Super AMOLED
Super AMOLED
Resolution
720 x 1280 pixels, 16:9 ratio (~294 ppi density)
720 x 1280 pixels, 16:9 ratio (~316 ppi density)
PPI
720
720
Refresh Rate
60Hz
60Hz
Peak Brightness
N/A
N/A
HDR Support
✗
✗
Protection
Asahi Dragontrail X Glass
Corning Gorilla Glass
Performance
Chipset
Exynos 3475 Quad (28 nm)
N/A
CPU
Quad-core 1.3 GHz Cortex-A7
Dual-core 1.5 GHz
GPU
Mali-T720
N/A
Memory
16GB 1.5GB RAM
16GB 1GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (dedicated slot)
microSDHC (dedicated slot)
Camera
Main Camera
5 MP
8 MP
Main Camera Details
5 MP, f/2.2, AF
8 MP, AF
Front Camera
2 MP
2 MP
Front Camera Details
2 MP
2 MP
Video Recording
720p@30fps
1080p@30fps
Selfie Video
N/A
N/A
OIS
✗
✗
Night Mode
✗
✗
RAW Support
✗
✗
Battery
Capacity
2600 mAh
N/A
Battery Details
Li-Ion 2600 mAh, removable
Removable Li-Ion battery
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Design
Dimensions
142.2 x 71.1 x 7.9 mm (5.60 x 2.80 x 0.31 in)
N/A
Weight
138.9 g
N/A
Materials
N/A
N/A
Water Resistance
N/A
N/A
Colors
Black
Black
Foldable
✗
✗
Connectivity
SIM
Micro-SIM
Micro-SIM
Network
GSM / HSPA / LTE
GSM / HSPA / LTE
Network Speed
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
HSPA 21.1/5.76 Mbps, LTE
5G
✗
✗
4G
✓
✓
WiFi
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, DLNA, hotspot
Bluetooth
4.1, A2DP
3.0, A2DP, aptX
NFC
✗
✓
USB
microUSB 2.0
microUSB 2.0
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS
GPS, A-GPS
Software
Operating System
Android 6.0 (Marshmallow)
Android 2.3.5 (Gingerbread)
OS Version
Android 6.0 (Marshmallow)
Android 2.3.5 (Gingerbread)
Security
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
Accelerometer, proximity
Accelerometer, gyro, proximity, compass
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes

