Samsung Galaxy A51
#1660
Xiaomi Mi 9 SE
#1541Category Breakdown
Samsung Galaxy A51
Xiaomi Mi 9 SE
Performance
76.877.4
Camera
64.767.0
Display
82.883.7
Battery
28.125.2
Build
88.194.1
Connectivity
62.766.0
Audio
8.98.9
Overall
56.257.3
Summary
- The Samsung Galaxy A51 features a larger 6.5-inch Super AMOLED display with a resolution of 1080 x 2400 pixels, while the Xiaomi Mi 9 SE has a smaller 5.97-inch Super AMOLED display with HDR support and a resolution of 1080 x 2340 pixels.
- In terms of performance, the Galaxy A51 is powered by the Exynos 9611 chipset, whereas the Mi 9 SE utilizes the Snapdragon 712, both offering adequate performance for daily tasks.
- The camera systems are similar, with both having a 48 MP main sensor, but the Mi 9 SE includes an additional telephoto lens and offers more video recording options.
- Battery capacity on the A51 is 4000 mAh compared to the Mi 9 SE's 3070 mAh, giving the former an advantage in longevity.
- Build quality differs as well, with the A51 using a plastic frame and back, while the Mi 9 SE features a glass back and aluminum frame, contributing to a more premium feel.
- Software-wise, the A51 runs on Android 10 with One UI, while the Mi 9 SE starts with Android 9.0 and can be upgraded to Android 11 with MIUI.
Side-by-side Specification Comparison
Samsung Galaxy A51
Xiaomi Mi 9 SE
General
Release Date
2019, December 12
2019
Announced
2019, December 12
2019, February 20
Description
Also available with 5GVersions: SM-A515F/DSN (Global); SM-A515F/DS (LATAM); SM-A515F/DST (Brazil); SM-A515F/DSM (Russia); SM-A515F/N (Australia); SM-A515U (USA)
N/A
Display
Size
6.5"
5.97"
Type
Super AMOLED
Super AMOLED, HDR
Resolution
1080 x 2400 pixels, 20:9 ratio (~405 ppi density)
1080 x 2340 pixels, 19.5:9 ratio (~432 ppi density)
PPI
1080
1080
Refresh Rate
60Hz
60Hz
HDR Support
✗
✓
Protection
Corning Gorilla Glass 3
Corning Gorilla Glass 5
Performance
Chipset
Exynos 9611 (10 nm)
Qualcomm SDM712 Snapdragon 712 (10 nm)
CPU
Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
Octa-core (2x2.3 GHz Kryo 360 Gold & 6x1.7 GHz Kryo 360 Silver)
GPU
Mali-G72 MP3
Adreno 616
Memory
64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM, 256GB 8GB RAM
64GB 6GB RAM, 128GB 6GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (dedicated 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, (wide), 1/2.0", 0.8µm, PDAF8 MP, f/2.4, (telephoto), 1/4.0", 1.12µm, PDAF13 MP, f/2.4, (ultrawide), 1/3.1", 1.12µm
Main Camera Features
LED flash, panorama, HDR
Dual-LED flash, HDR, panorama
Front Camera
32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm
20 MP, f/2.0, (wide), 1/3", 0.9µm
Front Camera Features
HDR
HDR
Video Recording
4K@30fps, 1080p@30/120fps; gyro-EIS
4K@30fps, 1080p@30/60/120fps, 720p@960fps, gyro-EIS
Selfie Video
4K@30fps, 1080p@30fps
1080p@30fps
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
4000 mAh
3070 mAh
Battery Details
Li-Po 4000 mAh, non-removable
Li-Po 3070 mAh, non-removable
Charging Details
15W wired
18W wired
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
158.5 x 73.6 x 7.9 mm (6.24 x 2.90 x 0.31 in)
147.5 x 70.5 x 7.5 mm (5.81 x 2.78 x 0.30 in)
Weight
172 g
155 g
Materials
Glass front (Gorilla Glass 3), plastic back, plastic frame
Glass front (Gorilla Glass 5), glass back, aluminum frame
Colors
Prism Crush Black, Prism Crush White, Prism Crush Blue, Prism Crush Pink
Violet, Blue, Gray
Foldable
✗
✗
SAR
0.80 W/kg (head) 0.67 W/kg (body)
1.39 W/kg (head) 1.39 W/kg (body)
Connectivity
SIM
Nano-SIMNano-SIM + Nano-SIM
Nano-SIM + Nano-SIM
Network
GSM / HSPA / LTE
GSM / CDMA / HSPA / LTE
Network Speed
HSPA, LTE
HSPA, LTE
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, DLNA
Bluetooth
5.0, A2DP, LE
5.0, 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, GALILEO, BDS
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
No
Software & Security
Operating System
Android 10, upgradable to Android 13, One UI 5
Android 9.0 (Pie), upgradable to Android 11, MIUI 12.5
Fingerprint
✓
✓
Face Unlock
✗
✗
Sensors
Fingerprint (under display, optical), accelerometer, gyro, compass
Fingerprint (under display, optical), accelerometer, gyro, compass