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

Availability

Officially announced
	Mar 04, 2025
MSRP
€ 999	$ 459

Design

Dimensions
6.00 x 2.80 x 0.32 inches 152.3 x 71.2 x 8.08 mm	6.44 x 3.05 x 0.33 inches 163.52 x 77.5 x 8.39 mm
Weight
6.67 oz (189.0 g)	7.44 oz (211.0 g)
Materials
Back: Glass	Back: Glass Frame: Plastic
Resistance
Yes; IP68	Water, Dust; IP64
Biometrics
Ultrasonic in-screen fingerprint	Optical in-screen fingerprint
Keys
Right: Volume control, Lock/Unlock key	Left: Volume control; Right: Lock/Unlock key, Other
Colors
	Grey, Black

Display

Size
6.4-inch, 90.03% screen-to-body	6.8-inch, 87.32% screen-to-body
Type
OLED, 120Hz, HDR, 3200 nits	OLED, 120Hz, 3000 nits
Resolution
2670x1200px, 20:9 ratio, 460 PPI	2392x1080px, 20:9 ratio, 388 PPI
Protection
	Panda Glass
Features
HDR support, Dolby Vision

Hardware

System chip
Snapdragon 8 Elite SM8750-AB (3 nm)	Snapdragon 7s Gen 3 SM7635 (4 nm)
Processor
Octa-core 2x4.32GHz Prime cores 6x3.53GHz Performance core	Octa-core 1x2.5GHz Cortex-A720 3x2.4​GHz Cortex-A720 4x1.8​GHz Cortex-A520
GPU
Adreno 830	Adreno 710
Memory
12GB/256GB (UFS 4.0) 12GB/512GB 16GB/512GB 16GB/1024GB	12GB/256GB
Storage expansion
not expandable	not expandable
OS
Android (14)	Android (15)

Battery

Type
5240 mAh	5000 mAh
Charging
Fast charging Qi wireless charging, Reverse wireless charging	Fast charging Reverse wired charging
Charge speed
Wired: 90.0W Wireless: 50.0W	Wired: 50.0W

PhoneArena Battery Tests

Battery Life Estimate

7h 18min

Browsing

17h 6min

Video

9h 49min

Gaming

11h 38min

Battery Life Estimate

7h 15min

Browsing

16h 13min

Video

10h 26min

Gaming

11h 6min

Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Triple camera	Triple camera
Main camera
50 MP (OIS, Laser and PDAF) Aperture size: F1.6 Focal length: 23 mm	50 MP (OIS, PDAF) Aperture size: F1.9 Sensor size: 1/1.56"
Second camera
50 MP (Telephoto, Periscope, OIS) Optical zoom: Yes Aperture size: F2.2	8 MP (Ultra-wide) Aperture size: F2.2
Third camera
50 MP (Telephoto, Periscope, OIS) Optical zoom: Yes Aperture size: F2.0 Focal Length: 60 mm	50 MP (Telephoto) Optical zoom: 3.0x Aperture size: F2.5
Flash
Dual LED	LED
Video recording
8K UHD (30 fps), 4K UHD (60 fps), 1080p (960 fps)	4K UHD (30 fps), 1080p (120 fps)
Front
32 MP Video capture: 4K UHD (60 fps)	50 MP

PhoneArena Camera Tests

146

Overall

153

Photo

138

Video

135

Overall

148

Photo

122

Video

Learn more on our PhoneArena Camera Test Results page

Connectivity & Features

Bluetooth
5.4	5.4
WLAN
a,b,g,n,ac,Wi-Fi 6,Wi-Fi 6E,Wi-Fi 7 Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax	a,b,g,n,ac,Wi-Fi 6 Multiple antennas, MIMO, Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax
USB
Type-C, USB 3.2	Type-C
Sensors
Accelerometer, Gyroscope, Compass, Barometer	Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning	GPS, A-GPS, Glonass, Galileo, 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	Wireless screen share
Additional microphone(s)
Noise cancellation	Noise cancellation

Cellular

5G
Bands n1, n3, n5, n7, n8, n28, n38, n40, n41, n48, n66, n77, n78, n79, SA, NSA	Bands n1, n2, n3, n5, n7, n8, n12, n20, n28, n38, n40, n41, n48, n66, n77, n78, SA, NSA, Sub-6
4G (FDD)
Bands 1, 3, 4, 5, 7, 8, 18, 19, 26, 28, 66(AWS-3)	Bands 1, 3, 4, 5, 7, 8, 18, 19, 20, 26, 28, 66(AWS-3)
4G (TDD)
Bands 34, 38, 39, 40, 41, 42, 48	Bands 38, 39, 40, 41, 42
3G
Bands 1, 2, 4, 5, 6, 8	Bands 1, 4, 5, 6, 8, 19
SIM type
Dual Nano SIM + eSIM	Dual Nano SIM

Alternative variants

With 512GB internal storage

Memory	512GB

With 16GB RAM and 512GB internal storage

Memory	16GB/512GB

With 16GB RAM and 1TB internal storage

Memory	16GB/1024GB

Links

Full specifications
Xiaomi 15 Specs	Nothing Phone (3a) Pro Specs
PhoneArena Review
Xiaomi 15 Review	Nothing Phone (3a) Pro Review