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Ulefone Armor X31

Ulefone Armor X31

Brand: ULEFONE
Category: Smart Phones
  • Display: 6.56" Inch
  • Camera: 48MP (1440p)
  • RAM: 6GB RAM
  • Processor: Helio G91
  • Battery: 6050mAh
  • Launch Date: 2025, April
  • Storage: 128GB storage, microSDXC
  • OS: Android 14
  • Body: 305.5g, 13.7mm thickness

Specs

Network

Technology GSM / CDMA / HSPA / LTE
2G bands GSM 850 / 900 / 1800 / 1900
CDMA 800 / 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. Released 2025, April

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
Ingress Protection 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

OS 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
UFS 2.1

Main Camera

Primary Camera 48 MP, f/1.8, (wide), 0.8µm, PDAF
Second Camera 20 MP, f/1.8, (night vision), 2 infrared lights
Third Camera 2 MP (macro)
Features LED flash, HDR, panorama
Video 1440p@30fps, 1080p@30fps

Selfie camera

Primary Camera 16 MP, f/2.3, (wide), 1.0µm
Video 1080p@30fps

Sound

Loudspeaker Yes
3.5mm jack Yes

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
Infrared Port 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 18W wired

Misc

Colors Black, Black/Orange, Black/Green
Price About 130 EUR

Test Results

EU LABEL

Energy Class A
Battery 81:03h endurance, 1000 cycles
Free fall Class A (270 falls)
Repairability Class C

Our Rating

The overall rating is based on review by our experts

6.8
  • Design 8 / 10
  • Display 6 / 10
  • Camera 7 / 10
  • Auto Focus 6 / 10
  • Image Quality 6 / 10
  • Performance 5 / 10
  • Features 9 / 10
  • Connectivity 8 / 10
  • Call Quality 7 / 10
  • Multimedia 6 / 10
  • Usability 7 / 10
  • Video Quality 5 / 10
  • Battery 9 / 10

PROS

  1. Extreme Ruggedness: IP68/IP69K and MIL-STD-810H certifications make it waterproof, dustproof, and drop-resistant.
  2. Massive Battery: The 6050mAh battery provides long-lasting usage for multiple days.
  3. Night Vision Camera: Includes a dedicated 20MP/25MP infrared night vision camera for complete darkness.
  4. High-Refresh Screen: Features a 90Hz or 120Hz refresh rate for smoother scrolling.
  5. Fast Connectivity: Supports 5G (on Pro model) and 4G LTE for fast internet speeds.
  6. Customizable Key: Dedicated side button for one-touch access to specific tools or applications.
  7. Ample Storage/RAM: Comes with 128GB/256GB storage and 6GB-16GB total RAM (including virtual).
  8. Modern Android 14/15: Ships with a recent Android OS for better security and features.
  9. Independent Flashlight: Features a bright, built-in flashlight on the back for emergencies.
  10. Headphone Jack & NFC: Includes a 3.5mm audio jack and NFC for contactless payments.

CONS

  1. Heavy and Bulky: The rugged design makes it much heavier and thicker than standard smartphones.
  2. Low Screen Resolution: The display is only HD+ (720 x 1612), which is low for its size.
  3. Slow Charging: Despite the large battery, it only supports 18W or 20W wired charging.
  4. No Wireless Charging: Lacks wireless charging capability, which is common in higher-end rugged phones.
  5. Weak Video Stabilization: Main camera lacks optical image stabilization (OIS), leading to shaky videos.
  6. Mediocre Processor: While capable, the Helio G91 or Dimensity 6300 is an entry-level/budget chipset.
  7. No Ultra-Wide Camera: The rear setup misses an ultra-wide lens, limiting photographic versatility.
  8. Limited Software Support: Ulefone generally offers fewer, slower Android OS updates compared to major brands.
  9. Bulky Protective Ports: Rubber covers for the headphone jack and USB port can be difficult to manage.
  10. Mono Speaker: Features a single speaker, limiting audio quality for media consumption.
  11. Ulefone

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Disclaimer Note

All specifications are provided as-is and may contain errors; we do our best to keep the information accurate but recommend re-verifying before purchase.

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