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Ulefone Armor 28 Ultra Thermal

Ulefone Armor 28 Ultra Thermal

Brand: ULEFONE
Category: Smart Phones
  • Display: 6.67" inch
  • Camera: 64MP (4320p)
  • RAM: 16GB RAM
  • Processor: Dimensity 9300+
  • Battery: 10600mAh
  • Launch Date: 2025, March 17
  • Storage: 1TB storage, microSDXC
  • OS: Android 15
  • Body: 450g, 19.4mm thickness

Specs

Network

Technology GSM / CDMA / HSPA / CDMA2000 / LTE / 5G
2G bands GSM 850 / 900 / 1800 / 1900
CDMA 800 / 1900
3G bands HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
CDMA2000 1x
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
5G bands 1, 2, 3, 5, 7, 8, 20, 25, 28, 38, 40, 41, 66, 71, 77, 78, 79 SA/NSA/Sub6
Speed HSPA, LTE, 5G

Launch

Announced 2024, September 03
Status Available. Released 2025, March 17

Body

Dimensions 174.2 x 83.6 x 19.4 mm (6.86 x 3.29 x 0.76 in)
Weight 450 g (0.99 lb)
SIM Nano-SIM + Nano-SIM
Ingress Protection IP68/IP69K dust tight and water resistant (high pressure water jets; immersible up to 2m for 30 min)
Drop resistant up to 2m
MIL-STD-810H compliant
Accessory connector (ulefone endoscope, microscope)

Display

Type AMOLED, 1B colors, 120Hz, 900 nits (HBM), 2200 nits (peak)
Size 6.67 inches, 110.0 cm2 (~75.5% screen-to-body ratio)
Resolution 1080 x 2460 pixels (~395 ppi density)
Protection Corning Gorilla Glass Victus
Secondary display on the back:
AMOLED, 1.04 inches, 340 x 340 pixels, 500 nits (HBM)

Platform

OS Android 15
Chipset Mediatek Dimensity 9300+ (4 nm)
CPU Octa-core (1x3.25 GHz Cortex-X4 & 3x2.85 GHz Cortex-X4 & 4x2.0 GHz Cortex-A720)
GPU Immortalis-G720 MC12

Memory

Card slot microSDXC (dedicated slot)
Internal 1TB 16GB RAM
UFS 4.0

Main Camera

Primary Camera 50 MP, f/1.9, (wide), 1.0"-type, 1.6µm, dual pixel PDAF
Second Camera 64 MP, f/1.8, (night vision), 1/2", 0.7µm, 4 infrared lights
Third Camera 50 MP, f/2.2, 117˚ (ultrawide), 1/2.76", 0.64µm
Fourth Camera Thermal camera by ThermoVue T2, 640x512 px
Features Quad-LED flash, HDR, panorama
Video 8K@30fps, 4K@30/60fps, 1080p@30/60fps, gyro-EIS

Selfie camera

Primary Camera 50 MP, f/2.5, (wide), 1/2.76", 0.64µm
Video 1080p@30fps

Sound

Loudspeaker Yes
3.5mm jack Yes

Comms

WLAN Wi-Fi 802.11 a/b/g/n/ac/6/7, tri-band
Bluetooth 5.4, A2DP, LE
Positioning GPS, GALILEO, GLONASS, QZSS, BDS, NavIC
NFC Yes
Infrared Port Yes
Radio Wireless FM radio, RDS, recording
USB USB Type-C 3.2 Gen2, Display Port 1.4, OTG, accessory connector pins

Features

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

Battery

Type Li-Ion 10600 mAh
Charging 120W wired, PPS, 40% in 10 min
50W wireless, 35% in 30 min
10W reverse wired
Reverse wireless

Misc

Colors Black
Price $ 899.80

Test Results

EU LABEL

Our Rating

The overall rating is based on review by our experts

8.5
  • Design 8 / 10
  • Display 9 / 10
  • Camera 8 / 10
  • Auto Focus 8 / 10
  • Image Quality 8 / 10
  • Performance 10 / 10
  • Features 10 / 10
  • Connectivity 10 / 10
  • Call Quality 8 / 10
  • Multimedia 7 / 10
  • Usability 8 / 10
  • Video Quality 8 / 10
  • Battery 9 / 10

PROS

  1. Features cutting-edge, high-resolution 640x512 AI-powered thermal imaging.
  2. Powered by the flagship MediaTek Dimensity 9300+ 5G processor for top-tier performance.
  3. Includes a 1-inch 50MP Sony IMX989 main sensor for excellent photography.
  4. Massive 10,600 mAh battery offers multi-day, long-lasting endurance.
  5. Supports extremely fast 120W wired charging to reach 40% in just 10 minutes.
  6. Equipped with a 6.67-inch 120Hz AMOLED main display with high 2200 nits peak brightness.
  7. Features a 1.04-inch AMOLED rear display for notifications and notifications.
  8. Extremely durable with IP68/IP69K and MIL-STD-810H ratings for extreme environments.
  9. Comes with a 64MP night vision camera with infrared LEDs.
  10. Features Wi-Fi 7, 1TB UFS 4.0 storage, and a 3.5mm headphone jack.

CONS

  1. Extremely heavy at 450g (nearly a pound), making it uncomfortable for daily carry.
  2. Very thick design at over 19mm, which may not fit in standard pockets.
  3. The 120W charger can get extremely hot during fast charging.
  4. Substantial price premium compared to other, less powerful rugged phones.
  5. Battery life can drain rapidly when using the advanced thermal imaging features.
  6. The single downward-firing loudspeaker is underwhelming for a flagship device.
  7. Camera software can produce over-sharpened, less natural-looking photos.
  8. Water damage, while highly resisted, may not be covered under warranty, limiting underwater use.
  9. The rear screen, while useful, is somewhat of a gimmick and can be fragile.
  10. Future software updates (Android 15/16) might be slow or uncertain compared to mainstream brands.

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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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