Category Breakdown
Samsung Galaxy S II HD LTE
ZTE Grand S Flex
Performance
49.247.2
Camera
19.119.1
Display
80.456.5
Battery
17.820.8
Build
16.90.2
Connectivity
45.640.5
Audio
8.98.9
Overall
28.524.6
Summary
- The Samsung Galaxy S II HD LTE features a 4.65-inch Super AMOLED display with a resolution of 720 x 1280 pixels, while the ZTE Grand S Flex has a larger 5.0-inch IPS LCD display with the same resolution but slightly lower pixel density.
- In terms of performance, the Galaxy S II is powered by a dual-core 1.5 GHz Snapdragon S3 chipset, whereas the Grand S Flex utilizes a dual-core 1.2 GHz Snapdragon 400, offering a more modern architecture.
- Both phones have an 8 MP rear camera capable of 1080p video recording, but the Grand S Flex has a lower-resolution 1 MP front camera compared to the 2 MP on the Galaxy S II.
- The battery capacity of the Grand S Flex is 2300 mAh, which is significantly higher than the 1850 mAh battery in the Galaxy S II, potentially offering better longevity.
- Software-wise, the Galaxy S II runs on Android 2.3 (upgradable to 4.0), while the Grand S Flex operates on Android 4.1, providing a more updated user experience.
Side-by-side Specification Comparison
Samsung Galaxy S II HD LTE
ZTE Grand S Flex
General
Release Date
2011
2013
Announced
2011
2013
Description
Also known as Samsung Galaxy S II HD LTE SHV-E120S
N/A
Display
Size
4.65"
5"
Type
Super AMOLED
IPS LCD
Resolution
720 x 1280 pixels, 16:9 ratio (~316 ppi density)
720 x 1280 pixels, 16:9 ratio (~294 ppi density)
PPI
720
720
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
Corning Gorilla Glass
N/A
Performance
Chipset
Qualcomm MSM8660 Snapdragon S3
Qualcomm MSM8930 Snapdragon 400 (28 nm)
CPU
Dual-core 1.5 GHz Scorpion
Dual-core 1.2 GHz Krait 200
GPU
Adreno 220
Adreno 305
Memory
16GB 1GB RAM
16GB 1GB RAM
Expandable Storage
✗
✗
Card Slot
microSDHC (dedicated slot)
No
Camera
Main Camera
8 MP, AF
8 MP, AF
Main Camera Features
LED flash
LED flash
Front Camera
2 MP
1 MP
Front Camera Features
N/A
N/A
Video Recording
1080p@30fps
1080p@30fps
Selfie Video
N/A
N/A
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
1850 mAh
2300 mAh
Battery Details
Removable Li-Ion 1850 mAh battery
Li-Ion 2300 mAh, non-removable
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
129.8 x 68.8 x 9.5 mm (5.11 x 2.71 x 0.37 in)
143 x 70 x 8.9 mm (5.63 x 2.76 x 0.35 in)
Weight
130.5 g
130 g
Materials
N/A
N/A
Colors
Black
Black/Silver
Foldable
✗
✗
SAR
0.12 W/kg (head) 0.94 W/kg (body)
N/A
Connectivity
SIM
Micro-SIM
Yes
Network
GSM / HSPA / LTE
GSM / HSPA / LTE
Network Speed
HSPA 21.1/5.76 Mbps, LTE
HSPA
5G
✗
✗
4G
✓
✓
WiFi
Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, DLNA, hotspot
Wi-Fi 802.11 b/g/n, DLNA, hotspot
Bluetooth
3.0, A2DP, aptX
4.0, A2DP
NFC
✗
✗
USB
microUSB 2.0 (MHL TV-out), OTG
microUSB 2.0
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS, A-GPS
GPS
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes
Software & Security
Operating System
Android 2.3 (Gingerbread), upgradable to 4.0 (Ice Cream Sandwich), TouchWiz UI 4
Android 4.1 (Jelly Bean)
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
Accelerometer, gyro, proximity, compass
Accelerometer, proximity

