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Nothing Phone (3a) vs Xiaomi 15T Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.

Comparison mode:
Specs Size
Differences only
6.4
Nothing Phone (3a)
6.6
Xiaomi 15T
Nothing Phone (3a) Xiaomi 15T
Released · Mar 11, 2025
Released · Sep 24, 2025
6.8-inch · 2392x1080px
6.8-inch · 2772x1280px
Triple camera
Triple camera
8GB · 128GB
12GB · 256GB
5000 mAh
5500 mAh
Check prices

Availability

Officially announced
Mar 04, 2025 Sep 24, 2025
Prices (MSRP)
8GB/128GB - €330
12GB/256GB - $379 | €379 		15GB/256GB - €649

Design

Dimensions
6.44 x 3.05 x 0.33 inches
163.52 x 77.5 x 8.35 mm 		6.43 x 3.07 x 0.30 inches
163.2 x 78 x 7.5 mm
Weight
7.09 oz / 201.0 g 6.84 oz / 194.0 g
Materials
Back: Glass
Frame: Plastic 		Back: Glass (Corning Gorilla Glass 7i)
Frame: Plastic
Resistance
Water, Dust; IP64 Water, Dust; IP68
Biometrics
Optical in-screen fingerprint Optical in-screen fingerprint
Keys
Left: Volume control; Right: Lock/Unlock key, Other Right: Volume control, Lock/Unlock key
Colors
Black, White, Blue Black, Gray, Rose Gold

Display

Size
6.8-inch, 87.32% screen-to-body 6.8-inch, 89.94% screen-to-body
Type
OLED, 120Hz, 3000 nits AMOLED, 120Hz, HDR10+, 3200 nits
Resolution
2392x1080px, 20:9 ratio, 388 PPI 2772x1280px, 20:9 ratio, 447 PPI
Protection
Panda Glass
PhoneArena Display Test
Bright Max (20% APL)
1184 (Average) 3264 (Excellent)
Bright Min
2.2 (Average) 1.9 (Good)
Learn more on our PhoneArena Display Test Results page.

Hardware

System chip
Snapdragon 7s Gen 3 SM7635 (4 nm) Mediatek Dimensity 8400 Ultra (4 nm)
Processor
Octa-core
1x2.5GHz Cortex-A720
3x2.4​GHz Cortex-A720
4x1.8​GHz Cortex-A520 		Octa-core
1x3.35GHz Cortex-A725
3x3.0​0GHz Cortex-A725
4x2.1​0GHz Cortex-A725
GPU
Adreno 710 Mali-G720 MC7
Memory
8GB/128GB
12GB/256GB 		12GB/256GB (UFS 4.1)
12GB/512GB
Storage expansion
not expandable not expandable
OS
Android (15) Android (15)
PhoneArena Performance Test
GeekBench 6 Single
1174 1614
GeekBench 6 Multi
3337 6446
3D Mark High
1060 3958
3D Mark Low
1055 2980
Learn more on our PhoneArena Performance Test Results page.

Battery

Type
5000 mAh 5500 mAh, Li - Ion
Charging
Fast charging
Reverse wired charging
Charge speed
Wired: 50.0W Wired: 67.0W
PhoneArena Battery Tests
Battery Life Estimate
7h 38min
Browsing
17h 4min
Video
11h 6min
Gaming
11h 21min
Battery Life Estimate
7h 11min
Browsing
16h 32min
Video
10h 26min
Gaming
9h 57min
Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Triple camera Triple camera
Main camera
50 MP (OIS, PDAF)
Aperture size: F1.9
Sensor size: 1/1.57" 		50 MP (OIS, PDAF)
Aperture size: F1.7
Focal length: 23 mm
Sensor size: 1/1.55"
Pixel size: 1.0 μm
Second camera
8 MP (Ultra-wide) 12 MP (Ultra-wide)
Aperture size: F2.2
Focal Length: 15 mm
Sensor size: 1/3.06"
Pixel size: 1.12 μm
Third camera
50 MP (Telephoto)
Optical zoom: 2.0x
Aperture size: F2.0
Sensor size: 1/2.74" 		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
Flash
LED LED
Video recording
4K UHD (30 fps), 1080p (120 fps) 4K UHD (60 fps)
Front
32 MP 32 MP
PhoneArena Camera Tests
126
Overall
135
Photo
117
Video
136
Overall
144
Photo
129
Video
Learn more on our PhoneArena Camera Test Results page

Connectivity & Features

Bluetooth
5.4 6.0
WLAN
a,b,g,n,ac,Wi-Fi 6
Multiple antennas, MIMO, Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, ax 		a,b,g,n,ac,Wi-Fi 6E
Wi-Fi Direct, Hotspot
USB
Type-C Type-C
Sensors
Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, QZSS, Cell ID, Wi-Fi positioning GPS, A-GPS, Glonass, Galileo, BeiDou, NavIC, Cell ID, Wi-Fi positioning
Other
NFC NFC, Infrared

Multimedia

Headphones
No 3.5mm jack No 3.5mm jack
Speakers
Earpiece, Multiple speakers Earpiece, Multiple speakers

Cellular

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

Alternative variants

With 12GB RAM and 256GB internal storage
Memory 12GB/256GB
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