Ulefone Armor X31
#2145
Xiaomi Redmi Note 9 5G
#1334Category Breakdown
Ulefone Armor X31
Xiaomi Redmi Note 9 5G
Performance
79.580.6
Camera
36.853.8
Display
78.072.9
Battery
38.133.7
Build
0.273.7
Connectivity
67.475.7
Audio
8.987.6
Overall
51.459.8
Summary
- The Ulefone Armor X31 features a rugged build with a larger 6.56-inch IPS LCD display at 720 x 1612 pixels and a 90Hz refresh rate, while the Xiaomi Redmi Note 9 5G has a slightly smaller 6.53-inch display with a higher resolution of 1080 x 2340 pixels but a lower 60Hz refresh rate.
- In terms of performance, the Armor X31 is powered by the Mediatek Helio G91 chipset, whereas the Redmi Note 9 5G utilizes the more advanced Mediatek Dimensity 800U, offering better efficiency and connectivity with 5G support.
- Both devices have a 48 MP main camera, but the Redmi Note 9 5G includes additional ultrawide and macro lenses, and it can record video in 4K, compared to the Armor X31's maximum of 1440p.
- The Armor X31 houses a larger 6050 mAh battery, while the Redmi Note 9 5G has a 5000 mAh battery, both supporting 18W charging.
- Software-wise, the Armor X31 runs on Android 14, while the Redmi Note 9 5G operates on Android 10 with MIUI 12, which may offer a different user experience.
Side-by-side Specification Comparison
Ulefone Armor X31
Xiaomi Redmi Note 9 5G
General
Release Date
2025
2020, November 26
Announced
2025
2020, November 26
Description
N/A
N/A
Display
Size
6.56"
6.53"
Type
IPS LCD, 90Hz, 600 nits
IPS LCD, 450 nits (typ)
Resolution
720 x 1612 pixels, 20:9 ratio (~269 ppi density)
1080 x 2340 pixels, 19.5:9 ratio (~395 ppi density)
PPI
720
1080
Refresh Rate
90Hz
60Hz
HDR Support
✗
✗
Protection
Corning Gorilla Glass 5
Corning Gorilla Glass 5
Performance
Chipset
Mediatek Helio G91 (12 nm)
Mediatek Dimensity 800U (7 nm)
CPU
Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU
Mali-G52 MC2
Mali-G57 MC3
Memory
128GB 6GB RAM
64GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM, 256GB 8GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (dedicated slot)
microSDXC (dedicated slot)
Camera
Main Camera
48 MP, f/1.8, (wide), 0.8µm, PDAF20 MP, f/1.8, (night vision), 2 infrared lights2 MP, (macro)
48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF8 MP, f/2.2, 118˚ (ultrawide), 1/4.0", 1.12µm2 MP, f/2.4, (macro)
Main Camera Features
LED flash, HDR, panorama
LED flash, HDR, panorama
Front Camera
16 MP, f/2.3, (wide), 1.0µm
13 MP, f/2.3, 29mm (standard), 1/3.1", 1.12µm
Front Camera Features
N/A
N/A
Video Recording
1440p@30fps, 1080p@30fps
4K@30fps, 1080p@30/60fps
Selfie Video
1080p@30fps
1080p@30fps
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
6050 mAh
5000 mAh
Battery Details
Li-Po 6050 mAh
Li-Po 5000 mAh
Charging Details
18W wired
18W wired
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
173.8 x 82 x 13.7 mm (6.84 x 3.23 x 0.54 in)
162 x 77.3 x 9.2 mm (6.38 x 3.04 x 0.36 in)
Weight
305.5 g
199 g
Materials
N/A
Glass front (Gorilla Glass 5), plastic back
Colors
Black, Black/Orange, Black/Green
Gray, Green, Violet
Foldable
✗
✗
SAR
N/A
N/A
Connectivity
SIM
Nano-SIM + Nano-SIM
Nano-SIM + Nano-SIM
Network
GSM / CDMA / HSPA / LTE
GSM / CDMA / HSPA / EVDO / LTE / 5G
Network Speed
HSPA, LTE
HSPA, LTE, 5G
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
5.2, A2DP, LE
5.1, A2DP, LE
NFC
✓
✗
USB
USB Type-C 2.0, OTG
USB Type-C 2.0
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS, GLONASS, GALILEO, BDS
GPS, GLONASS, GALILEO, BDS, QZSS
Audio
Stereo Speakers
✗
✓
Loudspeaker
Yes
Yes, with stereo speakers
Audio Jack
Yes
Yes
Software & Security
Operating System
Android 14
Android 10, MIUI 12
Fingerprint
✓
✓
Face Unlock
✗
✗
Sensors
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, barometer
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass