Category Breakdown
Samsung Galaxy A51 5G
vivo iQOO U3
Performance
83.080.6
Camera
64.747.4
Display
82.880.6
Battery
30.633.7
Build
74.40.2
Connectivity
80.575.2
Audio
8.98.9
Overall
59.048.7
Summary
- The Samsung Galaxy A51 5G features a glass front and plastic back with an aluminum frame, while the vivo iQOO U3 has a more straightforward build without specified materials.
- The A51 5G sports a 6.5-inch Super AMOLED display with a resolution of 1080 x 2400 pixels and a 60Hz refresh rate, whereas the U3 has a slightly larger 6.58-inch IPS LCD with a 90Hz refresh rate and HDR10 support.
- In terms of performance, the A51 is powered by the Exynos 980 chipset, while the U3 utilizes the Mediatek Dimensity 800U, with the latter offering slightly higher CPU clock speeds.
- Both devices have a 48 MP rear camera, but the A51 includes a more versatile quad-camera setup and a higher resolution 32 MP selfie camera compared to the U3's 8 MP.
- The A51 has a 4500 mAh battery with 15W charging, while the U3 offers a larger 5000 mAh battery with 18W charging.
- Both run on Android 10, but the A51 is upgradable to Android 13 with One UI 5, while the U3 uses IQOO UI 1.5.
Side-by-side Specification Comparison
Samsung Galaxy A51 5G
vivo iQOO U3
General
Release Date
2020, April 08
2020, December 14
Announced
2020, April 08
2020, December 14
Description
Also available with 4G/LTE onlyVersions: SM-A516B/DS (International), SM-A516U (USA), SM-A516F/DSN, SM-A516N (South Korea)
N/A
Display
Size
6.5"
6.58"
Type
Super AMOLED
IPS LCD, 90Hz, HDR10, 460 nits (typ)
Resolution
1080 x 2400 pixels, 20:9 ratio (~405 ppi density)
1080 x 2408 pixels, 20:9 ratio (~401 ppi density)
PPI
1080
1080
Refresh Rate
60Hz
90Hz
HDR Support
✗
✓
Protection
Corning Gorilla Glass 3
N/A
Performance
Chipset
Exynos 980 (8 nm)
Mediatek Dimensity 800U (7 nm)
CPU
Octa-core (2x2.2 GHz Cortex-A77 & 6x1.8 GHz Cortex A55)
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU
Mali-G76 MP5
Mali-G57 MC3
Memory
128GB 6GB RAM, 128GB 8GB RAM
64GB 6GB RAM, 128GB 6GB RAM, 128GB 8GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (uses shared SIM slot)
No
Camera
Main Camera
48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF12 MP, f/2.2, 123˚ (ultrawide)5 MP, f/2.4, (macro)5 MP, f/2.2, (depth)
48 MP, f/1.8, 25mm (wide), 1/2.0", 0.8µm, PDAF2 MP, f/2.4, (depth)
Main Camera Features
LED flash, panorama, HDR
LED flash, HDR, panorama
Front Camera
32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm
8 MP, f/2.0, (wide)
Front Camera Features
HDR
HDR
Video Recording
4K@30fps, 1080p@30/120fps; gyro-EIS
4K@30fps, 1080p@30fps
Selfie Video
4K@30fps, 1080p@30fps
1080p@30fps
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
4500 mAh
5000 mAh
Battery Details
Li-Po 4500 mAh
5000 mAh
Charging Details
15W wired
18W wired
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
158.9 x 73.6 x 8.7 mm (6.26 x 2.90 x 0.34 in)
164.2 x 75.4 x 8.4 mm (6.46 x 2.97 x 0.33 in)
Weight
187 g
185.5 g
Materials
Glass front (Gorilla Glass 3), plastic back, aluminum frame
N/A
Colors
Prism Cube Black, Prism Cube White, Prism Cube Pink
White, Gray, Aurora
Foldable
✗
✗
SAR
N/A
N/A
Connectivity
SIM
Nano-SIMNano-SIM + Nano-SIM
Nano-SIM + Nano-SIM
Network
GSM / HSPA / LTE / 5G
GSM / CDMA / HSPA / LTE / 5G
Network Speed
HSPA, LTE, 5G
HSPA, LTE, 5G
5G
✓
✓
4G
✓
✓
WiFi
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
5.0, A2DP, LE
5.1, A2DP, LE, aptX HD
NFC
✓
✗
USB
USB Type-C 2.0, OTG
USB Type-C 2.0, OTG
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS, GLONASS, GALILEO, BDS
GPS, GLONASS, BDS, GALILEO
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes
Software & Security
Operating System
Android 10, upgradable to Android 13, One UI 5
Android 10, IQOO UI 1.5
Fingerprint
✓
✓
Face Unlock
✗
✗
Sensors
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass

