Ulefone Armor 28 Ultra
#851
Xiaomi 15S Pro
#143Category Breakdown
Ulefone Armor 28 Ultra
Xiaomi 15S Pro
Performance
69.099.1
Camera
59.599.5
Display
93.199.1
Battery
99.798.7
Build
0.20.2
Connectivity
89.987.5
Audio
8.987.6
Overall
67.887.5
Summary
- The Ulefone Armor 28 Ultra features a rugged build with a larger 6.67" AMOLED display, offering 1080 x 2400 resolution and a peak brightness of 2200 nits, while the Xiaomi 15S Pro has a more refined 6.73" LTPO AMOLED display with a higher resolution of 1440 x 3200 and peak brightness of 3200 nits, supporting HDR10+ and Dolby Vision.
- In terms of performance, the Armor 28 Ultra is powered by a Mediatek Dimensity 9300+ chipset with 1GB RAM, whereas the Xiaomi 15S Pro utilizes a more advanced Xring O1 chipset with 16GB RAM, providing superior multitasking capabilities.
- Both devices have a 50 MP main camera, but the Xiaomi offers enhanced features like OIS and a versatile telephoto lens, while the Ulefone lacks OIS.
- The Armor 28 Ultra boasts a massive 10,600 mAh battery with 120W charging, compared to the 6,100 mAh battery and 90W charging of the Xiaomi.
- Software-wise, the Ulefone runs Android 14, upgradable to Android 15, while the Xiaomi comes with Android 15 and HyperOS 2, providing a more modern software experience.
Side-by-side Specification Comparison
Ulefone Armor 28 Ultra
Xiaomi 15S Pro
General
Release Date
2025
2025, May 22
Announced
2025
2025, May 22
Description
N/A
N/A
Display
Size
6.67"
6.73"
Type
AMOLED, 1B colors, 120Hz, 600 nits (HBM), 2200 nits (peak)
LTPO AMOLED, 68B colors, 120Hz, Dolby Vision, HDR10+, HDR Vivid, 3200 nits (peak)
Resolution
1080 x 2400 pixels, 20:9 ratio (~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 (1x3.4 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", 0.7µm, 4 infrared lights50 MP, f/2.2, 117˚ (ultrawide), 1/2.76", 0.64µm
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 wired
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 14, upgradable to 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