This sensor's native resolution is not consistently published: no scale representation is possible.
Published by the manufacturer
Native resolution cannot be verified. The official spec sheet states 640 × 512 with 12 µm pixels, but the same manufacturer's product page mentions a resolution 2.56 times higher than the previous generation, and a specialist site reports a smaller upscaled sensor. With no consistent published value, the native pixel count is left as not published and 640 × 512 is treated as a displayed resolution.
Specifications
Values come from manufacturer documentation unless otherwise
noted in the sources at the bottom of the page. This device has not been physically tested.
Identity
Brand
Ulefone
Model
Armor 28 Ultra Thermal
Series
Armor 28
Release year
2025
Commercial status
current
EAN code
not published by the manufacturer
Manufacturer reference
not published by the manufacturer
Segment
S1
Form factor
smartphone with built-in camera
Sensor and image
Native resolution, width (px)
not published by the manufacturer
Native resolution, height (px)
not published by the manufacturer
Native detector pixels
not published by the manufacturer
Displayed resolution, width (px)
640
Displayed resolution, height (px)
512
Interpolation method
software
Detector type
uncooled microbolometer
Detector material
not published by the manufacturer
Pixel pitch (µm)
12
Spectral band, min (µm)
not published by the manufacturer
Spectral band, max (µm)
not published by the manufacturer
NETD (mK)
40
NETD measurement conditions
< 40 mK
Frame rate (Hz)
25
Optics
Horizontal field of view (°)
not published by the manufacturer
Vertical field of view (°)
not published by the manufacturer
Advertised IFOV (mrad)
not published by the manufacturer
Minimum focus distance (m)
not published by the manufacturer
Focus
not published by the manufacturer
Interchangeable lenses
no
Digital zoom (×)
not published by the manufacturer
Macro lens
Availability
no
Reference
not applicable
Working distance (mm)
not applicable
Spot size (µm)
not applicable
Smallest measurable area (µm)
not applicable
Accuracy with macro (°C)
not applicable
Range max with macro (°C)
not applicable
Measurement
Range min (°C)
-20
Range max (°C)
550
Absolute accuracy (°C)
2
Relative accuracy (%)
not published by the manufacturer
Emissivity setting
not published by the manufacturer
Reflected temperature correction
not published by the manufacturer
Measurement modes
not published by the manufacturer
Simultaneous cursors
not published by the manufacturer
Full radiometry
not published by the manufacturer
Visible channel
Visible camera (MP)
50
Image fusion
not published by the manufacturer
LED light
not published by the manufacturer
Laser pointer
not published by the manufacturer
Ergonomics and ruggedness
Screen (inches)
6.67
Screen resolution
2400 × 1080
Touchscreen
yes
Weight (g)
450
Dimensions (mm)
174,15 × 83,6 × 19,4
IP rating
IP68, IP69K
Drop resistance (m)
not published by the manufacturer
Operating temperature, min (°C)
not published by the manufacturer
Operating temperature, max (°C)
not published by the manufacturer
Power
Power type
built-in battery
Battery system
not applicable
Battery life (h)
not published by the manufacturer
Charging connector
not published by the manufacturer
Storage and connectivity
Internal memory (GB)
not published by the manufacturer
Memory card
microSD
Wi-Fi
yes
Bluetooth
yes
Wired interface
USB-C
File formats
not published by the manufacturer
Software
PC software
not published by the manufacturer
Free PC software
not published by the manufacturer
Mobile app
ThermoVue Pro (built-in)
Report generation
not published by the manufacturer
Cloud service
not published by the manufacturer
Compliance
Calibration certificate provided
not published by the manufacturer
Declared standards
not published by the manufacturer
Warranty (months)
not published by the manufacturer
Support in France
not published by the manufacturer
Observations
ThermoVue T2 module designed by Ulefone, with a dedicated image processor.
40 mK NETD and ±2 °C accuracy stated, without measurement conditions.
High-end phone (Dimensity 9300+, 16 GB RAM): most of the price is not for the thermal camera.