Ulefone Armor 28 Ultra Thermal
#920
Xiaomi 15S Pro
#143Category Breakdown
Ulefone Armor 28 Ultra Thermal
Xiaomi 15S Pro
Performance
68.899.1
Camera
59.599.5
Display
93.799.1
Battery
99.798.7
Build
0.20.2
Connectivity
89.987.5
Audio
8.987.6
Overall
66.587.5
Summary
- The Ulefone Armor 28 Ultra Thermal features a rugged build with a larger 6.67-inch AMOLED display, offering a resolution of 1080 x 2460 pixels and a peak brightness of 2200 nits, while the Xiaomi 15S Pro has a more refined 6.73-inch LTPO AMOLED display with a higher resolution of 1440 x 3200 pixels and peak brightness of 3200 nits, supporting HDR10+ and Dolby Vision.
- In terms of performance, the Armor 28 is powered by the Mediatek Dimensity 9300+ chipset, while the Xiaomi utilizes the more advanced Xring O1 chipset, providing superior processing capabilities.
- Both phones have a 50 MP main camera, but the Xiaomi offers additional features like OIS and a versatile periscope telephoto lens, enhancing its photographic capabilities compared to the Armor 28's simpler setup.
- The Armor 28 boasts a significantly larger 10,600 mAh battery with 120W charging, compared to the Xiaomi's 6,100 mAh battery with 90W charging.
- Both devices run on Android 15, but the Xiaomi features HyperOS 2 and stereo speakers, enhancing the software experience compared to the Armor 28's more basic setup.
Side-by-side Specification Comparison
Ulefone Armor 28 Ultra Thermal
Xiaomi 15S Pro
General
Release Date
2024, September 03
2025, May 22
Announced
2024, September 03
2025, May 22
Description
Also known as Ulefone Armor 28 Ultra Thermal Variant
N/A
Display
Size
6.67"
6.73"
Type
AMOLED, 1B colors, 120Hz, 900 nits (HBM), 2200 nits (peak)
LTPO AMOLED, 68B colors, 120Hz, Dolby Vision, HDR10+, HDR Vivid, 3200 nits (peak)
Resolution
1080 x 2460 pixels (~395 ppi density)
1440 x 3200 pixels, 20:9 ratio (~521 ppi density)
PPI
1080
1440
Refresh Rate
120Hz
120Hz
HDR Support
✗
✓
Protection
Corning Gorilla Glass Victus
Shatterproof glass (2024 gen)
Performance
Chipset
Mediatek Dimensity 9300+ (4 nm)
Xring O1 (3 nm)
CPU
Octa-core (1x3.25 GHz Cortex-X4 & 3x2.85 GHz Cortex-X4 & 4x2.0 GHz Cortex-A720)
10-core (2x3.9GHz Cortex-X925 & 4x3.4GHz Cortex-A725 & 2x1.9GHz Cortex-A725 & 2x1.8GHz Cortex-A520)
GPU
Immortalis-G720 MC12
Immortalis-G925 MP16
Memory
1TB 16GB RAM
512GB 16GB RAM, 1TB 16GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (dedicated slot)
No
Camera
Main Camera
50 MP, f/1.9, (wide), 1.0"-type, 1.6µm, dual pixel PDAF64 MP, f/1.8, (night vision), 1/2", 0.7µm, 4 infrared lights50 MP, f/2.2, 117˚ (ultrawide), 1/2.76", 0.64µmThermal camera by ThermoVue T2, 640x512 px
50 MP, f/1.4, 23mm (wide), 1/1.31", 1.2µm, dual pixel PDAF, OIS50 MP, f/2.5, 120mm (periscope telephoto), PDAF (30cm - ∞), OIS, 5x optical zoom50 MP, f/2.2, 14mm, 115˚ (ultrawide), AF
Main Camera Features
Quad-LED flash, HDR, panorama
Laser AF, color spectrum sensor, Leica lens, Dual-LED dual-tone flash, HDR, panorama
Front Camera
50 MP, f/2.5, (wide), 1/2.76", 0.64µm
32 MP, f/2.0, 22mm (wide), 0.7µm
Front Camera Features
N/A
HDR, panorama
Video Recording
8K@30fps, 4K@30/60fps, 1080p@30/60fps, gyro-EIS
8K@24fps (HDR), 4K@30/60fps (HDR10+, 10-bit Dolby Vision HDR, 10-bit LOG), 1080p@30/60/120/240/960fps, gyro-EIS
Selfie Video
1080p@30fps
4K@30/60fps, 1080p@30/60fps, gyro-EIS
Optical Stabilization
✗
✓
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
10600 mAh
6100 mAh
Battery Details
Li-Ion 10600 mAh
Si/C Li-Ion 6100 mAh
Charging Details
120W wired, PPS, 40% in 10 min50W wireless, 35% in 30 min10W reverse wiredReverse wireless
90W wired, PD3.050W wireless10W reverse wireless
Fast Charging
✗
✗
Wireless Charging
✓
✓
Build & Safety
Dimensions
174.2 x 83.6 x 19.4 mm (6.86 x 3.29 x 0.76 in)
161.3 x 75.3 x 8.3 mm (6.35 x 2.96 x 0.33 in)
Weight
450 g
216 g
Materials
N/A
N/A
Colors
Black
Black, Blue
Foldable
✗
✗
SAR
N/A
N/A
Connectivity
SIM
Nano-SIM + Nano-SIM
Nano-SIM + Nano-SIM
Network
GSM / CDMA / HSPA / CDMA2000 / LTE / 5G
GSM / CDMA / HSPA / EVDO / LTE / 5G
Network Speed
HSPA, LTE, 5G
HSPA, LTE, 5G
5G
✓
✓
4G
✓
✓
WiFi
Wi-Fi 802.11 a/b/g/n/ac/6/7, tri-band
Wi-Fi 802.11 a/b/g/n/ac/6e/7, dual-band, Wi-Fi Direct
Bluetooth
5.4, A2DP, LE
5.4, A2DP, LE, aptX HD, aptX Adaptive, LHDC 5
NFC
✓
✓
USB
USB Type-C 3.2 Gen2, Display Port 1.4, OTG, accessory connector pins
USB Type-C 3.2 Gen2, Display Port, OTG
IR Blaster
✗
✗
Headphone Jack
✓
✗
Radio
✗
✗
Positioning
GPS, GALILEO, GLONASS, QZSS, BDS, NavIC
GPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), GLONASS
Audio
Stereo Speakers
✗
✓
Loudspeaker
Yes
Yes, with stereo speakers
Audio Jack
Yes
No
Software & Security
Operating System
Android 15
Android 15, HyperOS 2
Fingerprint
✓
✓
Face Unlock
✗
✗
Sensors
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, barometer
Fingerprint (under display, ultrasonic), accelerometer, proximity, gyro, compass, barometer