Category Breakdown
Umidigi G9 5G
vivo Y51a
Performance
86.178.2
Camera
19.162.7
Display
73.058.9
Battery
33.733.7
Build
0.216.8
Connectivity
73.555.3
Audio
8.98.9
Overall
47.347.5
Summary
- The Umidigi G9 5G features a larger 6.75-inch IPS LCD display with a 720 x 1600 resolution and a 90Hz refresh rate, while the vivo Y51a has a 6.58-inch IPS LCD with a higher 1080 x 2408 resolution and a 60Hz refresh rate, providing sharper visuals.
- In terms of performance, the G9 is powered by the Unisoc T765 chipset, while the Y51a utilizes the Qualcomm Snapdragon 662, with the latter generally offering better efficiency.
- The G9's camera setup includes a 50 MP main sensor, whereas the Y51a has a 48 MP main sensor along with an ultrawide lens, allowing for more versatile photography.
- Both phones have a 5000 mAh battery with 18W charging, but the G9 runs on Android 14, offering a more recent software experience compared to the Y51a's Android 11, which can be upgraded to Android 12.
- The G9 supports 5G connectivity, while the Y51a does not.
Side-by-side Specification Comparison
Umidigi G9 5G
vivo Y51a
General
Release Date
2024
2021, January 08
Announced
2024
2021, January 08
Description
N/A
N/A
Display
Size
6.75"
6.58"
Type
IPS LCD, 90Hz
IPS LCD
Resolution
720 x 1600 pixels, 20:9 ratio (~260 ppi density)
1080 x 2408 pixels, 20:9 ratio (~401 ppi density)
PPI
720
1080
Refresh Rate
90Hz
60Hz
HDR Support
✗
✗
Protection
N/A
N/A
Performance
Chipset
Unisoc T765 (6 nm)
Qualcomm SM6115 Snapdragon 662 (11 nm)
CPU
Octa-core (2x2.3 GHz Cortex-A76 & 6x2.1 GHz Cortex-A55)
Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
GPU
Mali-G57 MC2
Adreno 610
Memory
128GB 6GB RAM
128GB 6GB RAM, 128GB 8GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (uses shared SIM slot)
microSDXC (dedicated slot)
Camera
Main Camera
50 MP, f/1.8, (wide), AF2 MP, f/2.4, (macro)2 MP, f/2.4, (depth)
48 MP, f/1.8, (wide), 1/2.0", 0.8µm, PDAF8 MP, f/2.2, 120˚, (ultrawide), 1/4.0", 1.12µm2 MP, f/2.4, (macro)
Main Camera Features
LED flash
LED flash, HDR, panorama
Front Camera
8 MP, f/2.2, (wide)
16 MP, f/2.0, (wide), 1/3.06" 1.0µm
Front Camera Features
N/A
HDR
Video Recording
1080p@30fps
4K@30fps, 1080p@30fps, gyro-EIS
Selfie Video
Yes
1080p@30fps
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
5000 mAh
5000 mAh
Battery Details
5000 mAh
5000 mAh
Charging Details
18W wired
18W wired, 70% in 67 min
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
167.2 x 77 x 7.9 mm (6.58 x 3.03 x 0.31 in)
163.9 x 75.3 x 8.4 mm (6.45 x 2.96 x 0.33 in)
Weight
189 g
188 g
Materials
N/A
N/A
Colors
Space Black, Lake Green
Titanium Sapphire, Crystal Symphony
Foldable
✗
✗
SAR
N/A
0.87 W/kg (head) 0.39 W/kg (body)
Connectivity
SIM
Nano-SIM + Nano-SIM
Nano-SIM + Nano-SIM
Network
GSM / HSPA / LTE / 5G
GSM / HSPA / LTE
Network Speed
HSPA, LTE, 5G
HSPA, LTE
5G
✓
✗
4G
✓
✓
WiFi
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
5.0, A2DP, LE
5.0, A2DP, LE
NFC
✗
✗
USB
USB Type-C, OTG
USB Type-C 2.0, OTG
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS, GLONASS, GALILEO, BDS
GPS, GLONASS, GALILEO, BDS
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes
Software & Security
Operating System
Android 14
Android 11, upgradable to Android 12, Funtouch 12
Fingerprint
✓
✓
Face Unlock
✗
✗
Sensors
Fingerprint (side-mounted), accelerometer, compass
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass

