Xiaomi Redmi K90vsUlefone Armor 28 Ultra
We compare these two popular phones to help you decide which one fits your needs and budget better.
Xiaomi Redmi K90
#68
Winner
+6
Processor:Qualcomm Snapdragon 8 Elite Extreme Edition
RAM:12 GBGB
Storage:256 GBGB
Quick Stats
Xiaomi Redmi K90 offers all-day battery life with ultra-fast 100W charging for rapid replenishment.
Xiaomi Redmi K90's display offers 120Hz refresh rate, 3500 cd/m² brightness, and HDR10+ for vibrant, smooth visuals.
Xiaomi Redmi K90’s triple rear cameras with OIS and 4K/240fps deliver versatile, high-quality imaging for diverse scenarios.
Xiaomi Redmi K90’s flagship 3nm processor delivers blazing-fast performance and efficient power management for seamless multitasking.
Ulefone Armor 28 Ultra
#70
Processor:MediaTek Dimensity 9300+
RAM:16 GBGB
Quick Stats
Ulefone Armor 28 Ultra's 10,600 mAh battery ensures long endurance and rapid 50W wireless charging.
Ulefone Armor 28 Ultra’s 6.7-inch AMOLED display delivers 2200 nits brightness, 120 Hz refresh rate, and dual-screen convenience with rugged durability.
Ulefone Armor 28 Ultra’s triple-lens camera system with thermal imaging and 64 MP night vision ensures versatile, high-quality photography in all conditions.
Ulefone Armor 28 Ultra's MediaTek Dimensity 9300+ with 16 GB RAM and UFS 4.0 storage delivers flagship performance and 2.3 million Antutu score.
Specifications Comparison
Specification
Xiaomi Xiaomi Redmi K90
Ulefone Ulefone Armor 28 Ultra
Model
Qualcomm Snapdragon 8 Elite Extreme Edition
MediaTek Dimensity 9300+
CPU
2x4.47 GHz Oryon V2 Phoenix L+ 6x3.53 GHz Oryon V2 Phoenix M
1xCortex X4 3,4GHZ + 3xCortex X4 2,85GHZ + 4xCortex A720 2GHZ
Type
Hepta Core
Octa-Core
Nanometer
3 nm
4 nm
Frequency
4,5 GHz
3,2 GHz
64 Bits
Yes
Yes
GPU
Adreno 830
Immortalis-G720 MC12 1300MHz
RAM
12 GB
16 GB
Type
RAM LPDDR5X
N/A
Capacity
256 GB
N/A
Type
UFS Storage 4.1
UFS Storage 4.0
SD slot
No
N/A
Fingerprint security
Yes, in screen
Yes, on the side
Fingerprint sensor
Yes
Yes
Proximity sensor
N/A
Yes
Light sensor
Yes
Yes
Accelerometer sensor
Yes
Yes
Compass sensor
Yes
Yes
Gyroscope sensor
Yes
Yes
Barometer sensor
N/A
Yes
RGB sensor
Yes
N/A
Ultrasonic proximity virtual sensor
Yes
N/A
Audio
Dolby Atmos, Noise cancellation microphone, Stereo Speakers, 3 microphones
Stereo Speakers
Antutu Score
2920000
2300000
Antutu Version
Antutu v10
Antutu v10
Antutu Standing
Overall performance better than 98% of devices
Overall performance better than 97% of devices
Cooling system
Yes
Yes
Gaming buttons
No
No
Extras
N/A
N/A
Note: Highlighted specifications show differences between the two devices.
Rankings
Connectivity
Xiaomi Redmi K90
#687
Ulefone Armor 28 Ultra
#446
Winner
Design
Xiaomi Redmi K90
#48
Winner
Ulefone Armor 28 Ultra
#455
Display
Xiaomi Redmi K90
#685
Ulefone Armor 28 Ultra
#214
Winner
Performance
Xiaomi Redmi K90
#37
Winner
Ulefone Armor 28 Ultra
#59
Battery
Xiaomi Redmi K90
#280
Ulefone Armor 28 Ultra
#95
Winner
Camera
Xiaomi Redmi K90
#220
Winner
Ulefone Armor 28 Ultra
#230
| Metric | Xiaomi Redmi K90 | Ulefone Armor 28 Ultra |
|---|---|---|
| Connectivity | #687 | #446 Winner |
| Design | #48 Winner | #455 |
| Display | #685 | #214 Winner |
| Performance | #37 Winner | #59 |
| Battery | #280 | #95 Winner |
| Camera | #220 Winner | #230 |
Note: Lower rank number indicates a better position in category.
Key Differences
No significant specification differences found between these devices.
Scores by Category
Pros and Cons
Xiaomi Redmi K90
Strengths
Flagship 3nm processor ensures blazing-fast performance and efficiency.
Vibrant 120Hz OLED display with 3500 cd/m² brightness and HDR10+ support.
7100mAh battery with 100W fast charging for all-day usage and rapid replenishment.
Triple rear camera system with OIS and 4K/240fps video capabilities.
Premium aluminum and glass build with IP68 water/dust resistance.
Advanced MIUI 15 software with customization and security features.
Weaknesses
No expandable storage (no SD card slot).
Lacks LiDAR scanner for AR/depth sensing.
Absence of a 3.5mm audio jack.
Non-removable battery limits DIY replacement options.
Ulefone Armor 28 Ultra
Strengths
Exceptional build quality with IP68/69K durability and Corning Gorilla Glass Victus for extreme resilience.
10,600 mAh battery with 120W wired and 50W wireless fast charging for unparalleled endurance and quick replenishment.
Triple-lens camera system with thermal imaging and night vision for versatile, high-quality photography in all conditions.
Flagship performance via MediaTek Dimensity 9300+ with 16 GB RAM and UFS 4.0 storage for seamless multitasking and gaming.
Dual-screen design with a vibrant 120 Hz AMOLED display and 2200 nits brightness for immersive visuals and practical multitasking.
Weaknesses
Hefty weight (450 g) and thick profile (10.6 mm) may deter users seeking a lightweight, slim device.
Front camera aperture listed as 'Unknow' in specifications, raising concerns about photo quality in low light.
No expandable storage option (no SD card slot) limits flexibility for media-heavy users.
Premium price point (implied by 'flagship-tier value') may exceed budget expectations for some buyers.
Read Full Reviews
Xiaomi Redmi K90
Xiaomi Redmi K90 blends sleek design, powerful performance, and a vibrant display for an immersive experience. With a long-lasting battery and advanced camera system, it delivers premium quality and multimedia excellence in a durable, stylish package.
Ulefone Armor 28 Ultra
Unbeatable toughness meets elite performance in the Ulefone Armor 28 Ultra. Dual-screen convenience, vibrant display, and advanced thermal imaging make it the ultimate phone for adventures. Power, lightning-fast charging, and rugged durability for every challenge.
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