Xiaomi 15 Ultra
#179
Xiaomi Mix 4
#227Category Breakdown
Xiaomi 15 Ultra
Xiaomi Mix 4
Performance
73.070.8
Camera
55.858.6
Display
90.088.5
Battery
90.085.5
Build
72.872.8
Overall
74.673.7
Summary
- The Xiaomi 15 Ultra features a more advanced build quality with a glass-fiber or eco leather back and a higher peak brightness of 3200 nits compared to the Xiaomi Mix 4's ceramic back and 800 nits, enhancing outdoor visibility.
- The 15 Ultra's LTPO AMOLED display measures 6.73 inches with a resolution of 1440 x 3200 pixels, offering superior pixel density and HDR capabilities over the 6.67-inch AMOLED display of the Mix 4, which has a resolution of 1080 x 2400 pixels.
- In terms of performance, the 15 Ultra is powered by the Snapdragon 8 Elite chipset, providing a significant boost in processing power over the Snapdragon 888+ in the Mix 4.
- The camera system on the 15 Ultra is more versatile, featuring a 50 MP wide, 50 MP telephoto, and a 200 MP periscope lens, compared to the Mix 4's 108 MP wide and 8 MP periscope, allowing for enhanced photography options.
- Battery capacity is also greater in the 15 Ultra at 5410 mAh, supporting 90W charging, while the Mix 4 has a 4500 mAh battery with 120W charging.
- Finally, the 15 Ultra runs on Android 15 with HyperOS 2, offering a more updated software experience compared to the Mix 4's Android 11 with MIUI 12.5.
Side-by-side Specification Comparison
Xiaomi 15 Ultra
Xiaomi Mix 4
General
Release Date
2025, February 27
2021, August 10
Announced
2025, February 27
2021, August 10
Description
N/A
N/A
Display
Size
6.73"
6.67"
Type
LTPO AMOLED, 68B colors, 120Hz, Dolby Vision, HDR10+, HDR Vivid, 3200 nits (peak)
AMOLED, 1B colors, 120Hz, HDR10+, Dolby Vision, 800 nits (HBM)
Resolution
1440 x 3200 pixels, 20:9 ratio (~522 ppi density)
1080 x 2400 pixels, 20:9 ratio (~395 ppi density)
PPI
1440
1080
Refresh Rate
120Hz
120Hz
Peak Brightness
N/A
N/A
HDR Support
✓
✓
Protection
Xiaomi Shield Glass 2.0
Corning Gorilla Glass Victus
Performance
Chipset
Qualcomm SM8750-AB Snapdragon 8 Elite (3 nm)
Qualcomm SM8350 Snapdragon 888+ 5G (5 nm)
CPU
Octa-core (2x4.32 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M)
Octa-core (1x2.99 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55)
GPU
Adreno 830
Adreno 660
Memory
256GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM
128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM
Expandable Storage
✗
✗
Card Slot
No
No
Camera
Main Camera
50 MP
108 MP
Main Camera Details
50 MP, f/1.6, 23mm (wide), 1.0"-type, 1.6µm, dual pixel PDAF, OIS50 MP, f/1.8, 70mm (telephoto), 1/2.51", 0.7µm, dual pixel PDAF (10cm - ∞), OIS, 3x optical zoom200 MP, f/2.6, 100mm (periscope telephoto), 1/1.4", 0.56µm, multi-directional PDAF, OIS, 4.3x optical zoom50 MP, f/2.2, 14mm, 115˚ (ultrawide), 1/2.76", 0.64µm, dual pixel PDAFTOF 3D, (depth)
108 MP, f/1.9, 24mm (wide), 1/1.33", 0.8µm, PDAF, OIS8 MP, f/4.1, 120mm (periscope telephoto), PDAF, OIS, 5x optical zoom13 MP, f/2.2, 12mm, 123˚ (ultrawide), 1/3.06", 1.12µm
Front Camera
32 MP
20 MP
Front Camera Details
32 MP, f/2.0, 21mm (wide), 1/3.14", 0.7µm
20 MP, 27mm (wide), 1/3.4", 0.8µm, under display
Video Recording
8K@30fps, 4K@30/60/120fps, 1080p@30/60/120/240/480/960/1920fps, gyro-EIS, Dolby Vision HDR 10-bit rec. (4K@60fps, 1080p)
8K@24fps, 4K@30/60fps, 1080p@30/60/120/480fps; gyro-EIS, HDR10+
Selfie Video
4K@30/60fps, 1080p@30/60fps, gyro-EIS
1080p@30fps
OIS
✓
✓
Night Mode
✗
✗
RAW Support
✗
✗
Battery
Capacity
5410 mAh
4500 mAh
Battery Details
Si/C Li-Ion 5410 mAh - GlobalSi/C Li-Ion 6000 mAh - China
Li-Po 4500 mAh
Charging Details
90W wired, PD3.0, QC3+80W wireless10W reverse wireless
120W wired, PD3.0, QC4, 100% in 15 min50W wireless, 100% in 28 min
Fast Charging
✗
✗
Wireless Charging
✓
✓
Build & Design
Dimensions
161.3 x 75.3 x 9.4 mm (6.35 x 2.96 x 0.37 in)
162.6 x 75.4 x 8 mm (6.40 x 2.97 x 0.31 in)
Weight
226 g
225 g
Materials
Glass front, glass-fiber back or silicone polymer back (eco leather), aluminum frame
Glass front (Gorilla Glass Victus), ceramic back, aluminum frame
Water Resistance
N/A
N/A
Colors
Black, White, Silver Chrome, Green
Ceramic Black, Ceramic White, Shadow Gray
Foldable
✗
✗
Connectivity
SIM
Nano-SIM + Nano-SIMNano-SIM + Nano-SIM +eSIM+ eSIM (max 2 at a time)
Nano-SIM + Nano-SIM
Network
GSM / HSPA / 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/6e/7, dual-band or tri-band, Wi-Fi Direct
Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct
Bluetooth
6.0, A2DP, LE, aptX HD, aptX Adaptive, LHDC 5
5.2, A2DP, LE, aptX HD
NFC
✓
✓
USB
USB Type-C 3.2 Gen 2, DisplayPort, OTG
USB Type-C 2.0
IR Blaster
✗
✗
Headphone Jack
✗
✗
Radio
✗
✗
Positioning
GPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5), GLONASS
GPS (L1+L5), GLONASS (G1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5)
Software
Operating System
Android 15, up to 4 major Android upgrades, HyperOS 2
Android 11, MIUI 12.5
OS Version
Android 15, up to 4 major Android upgrades, HyperOS 2
Android 11, MIUI 12.5
Security
Fingerprint
✓
✓
Face Unlock
✗
✗
Sensors
Fingerprint (under display, ultrasonic), accelerometer, proximity, gyro, compass, barometer
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Audio
Stereo Speakers
✓
✓
Loudspeaker
Yes, with stereo speakers
Yes, with stereo speakers
Audio Jack
No
No