Ulefone Armor X31

Name: Ulefone Armor X31
Brand: Ulefone

Display6.56" 720 x 1612 pixels

ChipsetMediatek Helio G91 (12 nm)

Main camera48MP

Battery6050 mAh

6.4GoSolo score

ReviewMore Ulefone

Network

Technology

GSM / CDMA / HSPA / LTE

2G bands

GSM 850 / 900 / 1800 / 1900

3G bands

HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100

4G bands

1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 34, 38, 39, 40, 41, 66, 71

Speed

HSPA, LTE

Launch

Announced

2025, April

Status

Available

Body

Dimensions

173.8 x 82 x 13.7 mm (6.84 x 3.23 x 0.54 in)

Weight

305.5 g (10.79 oz)

SIM

Nano-SIM + Nano-SIM

Durability

IP68/IP69K dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min) Drop resistant up to 2m MIL-STD-810H compliant Dedicated flashlight 120 lm

Display

Type

IPS LCD, 90Hz, 600 nits

Size

6.56 inches, 103.4 cm2 (~72.5% screen-to-body ratio)

Resolution

720 x 1612 pixels, 20:9 ratio (~269 ppi density)

Protection

Corning Gorilla Glass 5, Mohs level 4

Platform

Android 14

Chipset

Mediatek Helio G91 (12 nm)

CPU

Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)

GPU

Mali-G52 MC2

Memory

Card slot

microSDXC (dedicated slot)

Internal

128GB 6GB RAM

Type

UFS 2.1

Main Camera

Modules

48 MP, f/1.8, (wide), 0.8µm, PDAF 20 MP, f/1.8, (night vision), 2 infrared lights 2 MP (macro)

Features

LED flash, HDR, panorama

Video

1440p@30fps, 1080p@30fps

Selfie Camera

Module

16 MP, f/2.3, (wide), 1.0µm

Features

1080p@30fps

Comms

WLAN

Wi-Fi 802.11 a/b/g/n/ac, dual-band

Bluetooth

5.2, A2DP, LE

Positioning

GPS, GLONASS, GALILEO, BDS

NFC

Yes

Radio

Wireless FM radio

USB

USB Type-C 2.0, OTG

Features

Sensors

Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, barometer

Battery

Type

Li-Po 6050 mAh

Charging

USB Power Delivery up to 18 W

Misc

Colors

Black, Black, Orange, Black, Green

Models

Available in 2 variants:6975326660068No

GoSolo Read / what it means6 takeaways

display

6.56", 720p, 90Hz, 800 nitsThe 800-nit peak brightness and 90Hz refresh help with daytime readability and smooth scrolling, but 720p on a 6.56-inch screen means text and icons are noticeably less sharp than standard HD phones at the same size.

performance

MediaTek Helio G91, 8-core, 2GHzThis chipset handles everyday apps, messaging, and light gaming (basic titles at standard settings), but struggles with heavy 3D games or demanding multitasking.

battery

6050mAh, roughly 7 to 8 hours screen timeThe large capacity helps the phone reach a full day on moderate use, though the low-power display and modest chipset reduce the drain rate in your favor.

charging

18W USB Power Delivery, roughly 1.5 hours to fullCharging is slow by 2025 standards, so you'll need to plan ahead if the battery runs low during a working day.

durability

IP68, IP69K, Gorilla Glass 5The dual IP rating (waterproof to 2m, dustproof; also survives high-pressure jets) and Gorilla Glass 5 make this phone tough for job sites or outdoor work, though Gorilla Glass 5 is not the latest generation.

connectivity

LTE only, no 5G, dual nanoSIMThe phone supports a wide range of 4G bands (including 600MHz and 700MHz low-band for rural reach), but 5G is absent, so download speeds cap at LTE limits even on modern networks.

GoSolo Score Breakdown

Design69

Display60

Performance58

Camera70

Battery67

Value64

GoSolo Verdict

The Armor X31 is a rugged phone built for outdoor work and rural life, with IP68/IP69K durability, a full day of battery, and a dedicated night-vision camera. It stumbles where it counts for everyday use: the 720p display is soft, charging crawls, and 5G is missing entirely.

Strengths · 3

IP68/IP69K durability plus MIL-STD-810H compliance and 2m drop resistance—genuinely built for site work and harsh outdoor conditions
Dedicated 20MP infrared night-vision camera with built-in lights, useful for low-light documentation that rivals can't match at this price
6050mAh battery delivers a full work day on moderate use, and the low-power display keeps hunger in check

Trade-offs · 3

18W charging is slow by current standards—about 90 minutes to full, a real problem if you need a quick top-up during work
720p display on a 6.56-inch screen is noticeably soft and lacks the sharpness expected at this price, making text and web pages less crisp than mainstream rivals
No 5G; LTE-only means you're locked to 4G speeds even on modern networks