Xiaomi 15 Ultra vs Nothing Phone (4a) Pro Specs Comparison

Availability

Officially announced
Feb 27, 2025	Mar 05, 2026
Scheduled release
	Mar 27, 2026
Prices (MSRP)
12GB/256GB - €1599	8GB/128GB - $499 | €479 12GB/256GB - $599 | €549

Design

Dimensions
6.35 x 2.96 x 0.37 inches (~0.42 inches with camera bump) 161.3 x 75.3 x 9.4 mm (~10.7 mm with camera bump)	6.44 x 3.02 x 0.31 inches 163.6 x 76.6 x 7.9 mm
Weight
	7.41 oz / 210.0 g
Materials
	Back: Aluminum Frame: Aluminum
Resistance
Water, Dust; IP68	Water, Dust; IP65
Biometrics
Ultrasonic in-screen fingerprint	Optical in-screen fingerprint
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control
Colors
Black, White, Silver Chrome, Green	Silver, Pink, Black

Display

Size
6.7-inch, 90.18% screen-to-body	6.8-inch, 89.76% screen-to-body
Type
AMOLED, 120Hz, HDR, 3000 nits	AMOLED, 144Hz, HDR10+, 5000 nits
Resolution
3200x1440px, 20:9 ratio, 521 PPI	2800x1260px, 20:9 ratio, 450 PPI
Protection
Xiaomi Shield Glass 2.0	Corning Gorilla Glass 7i
Features
HDR support, Dolby Vision, Scratch-resistant glass, Ambient light sensor, Proximity sensor

PhoneArena Display Test

Bright Max (20% APL)
3287 (Excellent)	1520 (Good)
Bright Min
1.8 (Good)	1.9 (Good)

Learn more on our PhoneArena Display Test Results page.

Hardware

System chip
Snapdragon 8 Elite SM8750-AB (4 nm)	Snapdragon 7 Gen 4 SM7750-AB (4 nm)
Processor
Octa-core 2x4.32GHz Oryon V2 PhoenixL 6x3.53GH​z Oryon V2 PhoenixM	Octa-core 1x2.8GHz Cortex-A720 4x2.4​GHz Cortex-A720 3x1.8​GHz Cortex-A520
GPU
Adreno 830	Adreno 722
Memory
12GB (LPDDR5X)/256GB (UFS 4.1) 16GB/512GB 16GB/1024GB	8GB (LPDDR5X)/128GB (UFS 3.1) 12GB/256GB
Storage expansion
not expandable	not expandable
OS
Android (15)	Android (16), up to 3 OS updates

PhoneArena Performance Test

GeekBench 6 Single
2962	1350
GeekBench 6 Multi
8965	4221
3D Mark High
5826	2094
3D Mark Low
4771	2082

Learn more on our PhoneArena Performance Test Results page.

Battery

Type
6000 mAh, Si - Carbon	5080 mAh
Charging
Fast charging Qi wireless charging, Reverse wireless charging	Qualcomm Quick Charge 4, USB Power Delivery Reverse wired charging
Charge speed
Wired: 90.0W Wireless: 80.0W	Wired: 50.0W

PhoneArena Battery Tests

Battery Life Estimate

7h 33min

Browsing

16h 39min

Video

10h 11min

Gaming

13h 29min

Battery Life Estimate

7h 22min

Browsing

16h 22min

Video

12h 29min

Gaming

6h 44min

Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Quad camera	Triple camera
Main camera
50 MP (Autofocus, Laser and PDAF) Aperture size: F1.6 Focal length: 23 mm Sensor size: 1" Pixel size: 1.6 μm	50 MP (OIS, Autofocus, PDAF) Sensor name: Sony LYT-710 Aperture size: F1.9 Focal length: 24 mm Sensor size: 1/1.56" Pixel size: 1 μm
Second camera
50 MP (Ultra-wide, PDAF) Aperture size: F2.2 Focal Length: 14 mm Sensor size: 1/2.76" Pixel size: 0.64 μm	8 MP (Ultra-wide) Aperture size: F2.2 Focal Length: 15 mm Sensor size: 1/4" Pixel size: 1.12 μm
Third camera
50 MP (Telephoto) Optical zoom: 3.2x Aperture size: F1.8 Focal Length: 75 mm Sensor size: 1/2.51" Pixel size: 0.7 μm	50 MP (Telephoto, Periscope, OIS, Autofocus, PDAF) Optical zoom: 3.5x Aperture size: F2.9 Focal Length: 80 mm Sensor size: 1/2.75" Pixel size: 0.64 μm
Fourth camera
200 MP (Telephoto, Periscope, OIS, PDAF) Optical zoom: 4.3x Aperture size: F2.6 Focal Length: 100 mm Sensor size: 1/1.4" Pixel size: 0.56 μm
Fifth camera
ToF 3D depth sensing
Flash
Dual LED	LED
Video recording
8K UHD (30 fps), 4K UHD (120 fps), 1080p (1920 fps)	4K UHD (30 fps), 1080p (120 fps) HDR, Time-lapse video, EIS, Dolby Vision HDR
Front
32 MP Video capture: 4K UHD (60 fps)	32 MP

PhoneArena Camera Tests

158

Overall

165

Photo

150

Video

N/A

Overall

N/A

Photo

N/A

Video

Learn more on our PhoneArena Camera Test Results page

Connectivity & Features

Bluetooth
6.0	5.4
WLAN
Wi-Fi 6,Wi-Fi 6E,Wi-Fi 7,tri-band Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax	Wi-Fi 6,dual-band MIMO, Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac
USB
Type-C, USB 3.2	Type-C, USB 2.0
Sensors
Accelerometer, Gyroscope, Compass, Barometer, Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Ambient light sensor, Proximity sensor
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, QZSS, NavIC, Cell ID, Wi-Fi positioning, Emergency SOS via satellite (SMS sending/receiving)	GPS, A-GPS, Glonass, BeiDou, QZSS, Cell ID, Wi-Fi positioning
Other
NFC, Infrared	NFC

Multimedia

Headphones
No 3.5mm jack	No 3.5mm jack
Speakers
Earpiece, Multiple speakers	Earpiece, Multiple speakers
Screen mirroring
	Wireless screen share
Additional microphone(s)
	Noise cancellation

Cellular

5G Bands
n1, n2, n3, n5, n7, n8, n12, n20, n25, n26, n28, n34, n38, n39, n40, n41, n48, n66, n71, n75, n77, n78, n79, SA, NSA, Sub-6	n1, n2, n3, n5, n7, n8, n12, n20, n25, n28, n38, n40, n41, n48, n66, n71, n77, n78
LTE Bands
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66, 71	1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28, 66, 71
TDD Bands
38, 39, 40, 41, 42, 48	38, 40, 41, 42, 48
3G Bands
1, 2, 4, 5, 6, 8	1, 2, 4, 5, 6, 8, 19
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s
SIM type
Dual Nano SIM + eSIM	Dual Nano SIM + eSIM
HD Voice
	Yes
VoLTE
	Yes

Discover more

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