Lenovo Vibe X2
#4587
ZTE Blade A51
#4728Category Breakdown
Lenovo Vibe X2
ZTE Blade A51
Performance
60.360.3
Camera
42.442.4
Display
70.570.5
Battery
43.543.5
Build
70.870.8
Overall
56.456.4
Summary
- The Lenovo Vibe X2 features a 5.0-inch IPS LCD display with a resolution of 1080 x 1920 pixels, offering a sharper image compared to the ZTE Blade A51's larger 6.52-inch IPS LCD display with a resolution of 720 x 1600 pixels.
- In terms of performance, the Vibe X2 is powered by a Mediatek MT6595M chipset, while the Blade A51 utilizes a Unisoc SC9863A, with both having 2GB of RAM.
- Both devices have a 13 MP rear camera and a 5 MP front camera, but the Vibe X2's camera benefits from a higher resolution display for viewing images.
- The Blade A51 has a larger 3200 mAh battery compared to the Vibe X2's 2300 mAh, which may provide better longevity.
- Software-wise, the Vibe X2 runs on Android 4.4 (upgradable to 5.0), while the Blade A51 operates on Android 11 (Go edition), offering a more modern software experience.
- The build quality of the Vibe X2 is more compact and lighter at 120g, whereas the Blade A51 is bulkier at 173.7g.
Side-by-side Specification Comparison
Lenovo Vibe X2
ZTE Blade A51
General
Release Date
2014
2021, May 08
Announced
2014
2021, May 08
Description
Also known as Lenovo Vibe X2 Dual SIM with dual-SIM card slots
N/A
Display
Size
5"
6.52"
Type
IPS LCD
IPS LCD
Resolution
1080 x 1920 pixels, 16:9 ratio (~441 ppi density)
720 x 1600 pixels, 20:9 ratio (~269 ppi density)
PPI
1080
720
Refresh Rate
60Hz
60Hz
Peak Brightness
N/A
N/A
HDR Support
✗
✗
Protection
N/A
N/A
Performance
Chipset
Mediatek MT6595M
Unisoc SC9863A (28 nm)
CPU
Octa-core (4x2.0 GHz Cortex-A17 & 4x1.7 GHz Cortex-A7)
Octa-core (4x1.6 GHz Cortex-A55 & 4x1.2 GHz Cortex-A55)
GPU
PowerVR G600
IMG8322
Memory
32GB 2GB RAM
32GB 2GB RAM, 64GB 2GB RAM
Expandable Storage
✗
✗
Card Slot
No
microSDXC
Camera
Main Camera
13 MP
13 MP
Main Camera Details
13 MP, f/2.2, AF
13 MP, AF2 MP
Front Camera
5 MP
5 MP
Front Camera Details
5 MP
5 MP
Video Recording
1080p@30fps
1080p@30fps
Selfie Video
N/A
N/A
OIS
✗
✗
Night Mode
✗
✗
RAW Support
✗
✗
Battery
Capacity
2300 mAh
3200 mAh
Battery Details
Li-Po 2300 mAh, non-removable
Li-Ion 3200 mAh
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Design
Dimensions
140.2 x 68.6 x 7.3 mm (5.52 x 2.70 x 0.29 in)
166.5 x 75.6 x 8.5 mm (6.56 x 2.98 x 0.33 in)
Weight
120 g
173.7 g
Materials
N/A
N/A
Water Resistance
N/A
N/A
Colors
White, Gold, Red, Charcoal
Blue, Gray
Foldable
✗
✗
Connectivity
SIM
Micro-SIMMicro-SIM + Nano-SIM
Nano-SIM + Nano-SIM
Network
GSM / HSPA / LTE
GSM / HSPA / LTE
Network Speed
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
HSPA, LTE
5G
✗
✗
4G
✓
✓
WiFi
Wi-Fi 802.11 b/g/n/ac, dual band, hotspot
Wi-Fi 802.11 b/g/n
Bluetooth
4.1, A2DP, LE
4.2, A2DP, LE
NFC
✗
✓
USB
microUSB 2.0
USB Type-C 2.0, OTG
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS, GLONASS
GPS, GLONASS
Software
Operating System
Android 4.4 (KitKat), upgradable to 5.0 (Lollipop)
Android 11 (Go edition)
OS Version
Android 4.4 (KitKat), upgradable to 5.0 (Lollipop)
Android 11 (Go edition)
Security
Fingerprint
✗
✓
Face Unlock
✗
✗
Sensors
Accelerometer, proximity, compass
Fingerprint (rear-mounted), accelerometer, proximity
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes