Xiaomi 15T vs Nothing Phone (4a) Specs Comparison

Availability

Officially announced
Sep 24, 2025	Mar 05, 2026
Prices (MSRP)
15GB/256GB - €649	8GB/128GB - €349 8GB/256GB - €389 12GB/256GB - €429

Design

Dimensions
6.43 x 3.07 x 0.30 inches 163.2 x 78 x 7.5 mm	6.45 x 3.05 x 0.33 inches 163.9 x 77.5 x 8.5 mm
Weight
6.84 oz / 194.0 g	7.23 oz / 205.0 g
Materials
Back: Glass (Corning Gorilla Glass 7i) Frame: Plastic	Back: Glass Frame: Plastic
Resistance
Water, Dust; IP68	Water, Dust; IP64
Biometrics
Optical in-screen fingerprint	Optical in-screen fingerprint
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control
Colors
Black, Gray, Rose Gold	White, Blue, Pink, Black

Display

Size
6.8-inch, 89.94% screen-to-body	6.8-inch, 87.44% screen-to-body
Type
AMOLED, 120Hz, HDR10+, 3200 nits	AMOLED, 120Hz, HDR10+, 4500 nits
Resolution
2772x1280px, 20:9 ratio, 447 PPI	2720x1224px, 20:9 ratio, 440 PPI
Protection
	Corning Gorilla Glass 7i

PhoneArena Display Test

Bright Max (20% APL)
3264 (Excellent)	1493 (Good)
Bright Min
1.9 (Good)	2 (Good)

Learn more on our PhoneArena Display Test Results page.

Hardware

System chip
Mediatek Dimensity 8400 Ultra (4 nm)	Snapdragon 7s Gen 4 SM7635-AC (4 nm)
Processor
Octa-core 1x3.35GHz Cortex-A725 3x3.0​0GHz Cortex-A725 4x2.1​0GHz Cortex-A725	Octa-core 1x2.7GHz Cortex-A720 3x2.4​GHz Cortex-A720 4x1.8​GHz Cortex-A520
GPU
Mali-G720 MC7	Adreno 810
Memory
12GB/256GB (UFS 4.1) 12GB/512GB	8GB (LPDDR4X)/128GB (UFS 3.1) 8GB/256GB 12GB/256GB
Storage expansion
not expandable	not expandable
OS
Android (15)	Android (16), up to 3 OS updates

PhoneArena Performance Test

GeekBench 6 Single
1614	1247
GeekBench 6 Multi
6446	3322
3D Mark High
3958	1126
3D Mark Low
2980	1117

Learn more on our PhoneArena Performance Test Results page.

Battery

Type
5500 mAh, Li - Ion	5080 mAh
Charging
	Qualcomm Quick Charge 4
Charge speed
Wired: 67.0W	Wired: 50.0W

PhoneArena Battery Tests

Battery Life Estimate

7h 11min

Browsing

16h 32min

Video

10h 26min

Gaming

9h 57min

Battery Life Estimate

7h 10min

Browsing

18h 44min

Video

10h 19min

Gaming

6h 50min

Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Triple camera	Triple camera
Main camera
50 MP (OIS, PDAF) Aperture size: F1.7 Focal length: 23 mm Sensor size: 1/1.55" Pixel size: 1.0 μm	50 MP (OIS, Autofocus, PDAF) Sensor name: Sony LYT-710 Aperture size: F1.9 Focal length: 24 mm Sensor size: 1/1.57" Pixel size: 1 μm
Second camera
12 MP (Ultra-wide) Aperture size: F2.2 Focal Length: 15 mm Sensor size: 1/3.06" Pixel size: 1.12 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, PDAF) Optical zoom: 2.0x Aperture size: F1.9 Focal Length: 46 mm Sensor size: 1/2.76" Pixel size: 0.64 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
Flash
LED	LED
Video recording
4K UHD (60 fps)	4K UHD (30 fps), 1080p (120 fps) OIS, Time-lapse video, EIS, Dolby Vision HDR
Front
32 MP	32 MP Video capture: 1080p (30 fps)

PhoneArena Camera Tests

136

Overall

144

Photo

129

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 6E Wi-Fi Direct, Hotspot	Wi-Fi 6,dual-band MIMO, Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax
USB
Type-C	Type-C, USB 2.0
Sensors
Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Ambient light sensor, Proximity sensor
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, NavIC, Cell ID, Wi-Fi positioning	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, n28, n38, n40, n41, n48, n66, n77, n78, SA, NSA	n1, n2, n3, n5, n7, n8, n12, n20, n28, n38, n40, n41, n48, n66, n71, n77, n78
LTE Bands
1, 2, 3, 4, 5, 7, 12, 13, 17, 18, 19, 20, 26, 28, 32, 66	1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 66, 71
TDD Bands
38, 40, 41, 42	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
Nano SIM, eSIM	Dual Nano SIM

Discover more

Full Specs Xiaomi 15T Specs PA Review Xiaomi 15T Review

Full Specs Nothing Phone (4a) Specs PA Review Nothing Phone (4a) Review