Xiaomi 15 Ultra vs Xiaomi 18 Fold Specs Comparison

Availability

Officially announced
Feb 27, 2025	Sep 03, 2026
Prices (MSRP)
12GB/256GB - €1599	€1400

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)	6.45 x 4.64 x 0.20 inches 163.8 x 117.8 x 5.0 mm
Folded
	(83.6 x 117.8 x 10.7 mm)
Weight
	7.73 oz / 219.0 g
Materials
	Back: Glass Frame: Aluminum
Resistance
Water, Dust; IP68	Water, Dust; IP59
Biometrics
Ultrasonic in-screen fingerprint	2D Face unlock, Fingerprint (touch)
Keys
Right: Volume control, Lock/Unlock key
Colors
Black, White, Silver Chrome, Green	Gray, Silver, Red, Rose Gold

Display

Size
6.7-inch, 90.18% screen-to-body	7.6-inch, 90.51% screen-to-body
Type
AMOLED, 120Hz, HDR, 3000 nits	AMOLED, 120Hz, HDR, 4000 nits
Resolution
3200x1440px, 20:9 ratio, 521 PPI	1672x2364px, 382 PPI
Protection
Xiaomi Shield Glass 2.0
Features
HDR support, Dolby Vision, Scratch-resistant glass, Ambient light sensor, Proximity sensor	HDR support
Front cover display
	5.4 inches 1712 x1168 px AMOLED Scratch-resistant glass (Xiaomi Shield Glass 2.0)

PhoneArena Display Test

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

Learn more on our PhoneArena Display Test Results page.

Hardware

System chip
Snapdragon 8 Elite SM8750-AB (4 nm)	XRing O3 (3 nm)
Processor
Octa-core 2x4.32GHz Oryon V2 PhoenixL 6x3.53GH​z Oryon V2 PhoenixM	Deca-core 2x C1-Ultra @4.35GHz 4x C1-Premium @3.68GHz 4x C1 Pro @3.15GHz
GPU
Adreno 830	Mali G2-Ultra NX MP16 @1.6GHz
Memory
12GB (LPDDR5X)/256GB (UFS 4.1) 16GB/512GB 16GB/1024GB	12GB (LPDDR5X)/256GB (UFS 4.1) 12GB/512GB 16GB.512GB 16GB/1TB
Storage expansion
not expandable	not expandable
OS
Android (15)	Android (17)

PhoneArena Performance Test

GeekBench 6 Single
2962	Untested
GeekBench 6 Multi
8965	Untested
3D Mark High
5826	Untested
3D Mark Low
4771	Untested

Learn more on our PhoneArena Performance Test Results page.

Battery

Type
6000 mAh, Si - Carbon	6000 mAh, Si - Carbon
Charging
Fast charging Qi wireless charging, Reverse wireless charging	Fast charging Reverse wired charging
Charge speed
Wired: 90.0W Wireless: 80.0W	Wired: 67.0W Wireless: 50.0W

PhoneArena Battery Tests

Battery Life Estimate

7h 33min

Browsing

16h 39min

Video

10h 11min

Gaming

13h 29min

Battery Life Estimate

Untested

Browsing

Untested

Video

Untested

Gaming

Untested

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	200 MP (OIS, PDAF) Sensor name: Samsung ISOCELL HP5 Aperture size: F1.7 Focal length: 23 mm Sensor size: 1/1.56" Pixel size: 0.5 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	50 MP (Ultra-wide) Sensor name: OmniVision OV50M Aperture size: F2.4 Focal Length: 17 mm Sensor size: 1/2.88" Pixel size: 0.61 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) Sensor name: Samsung ISOCELL JN5 Optical zoom: 3.5x Aperture size: F2.8 Focal Length: 80 mm Sensor size: 1/2.76" 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)	OIS, HDR, Time-lapse video, Hyperlapse, Continuous autofocus, Object tracking, EIS, Dolby Vision HDR
Front
32 MP Video capture: 4K UHD (60 fps)	16 MP (HDR) Folded: 16 MP Video capture: 1080p (60 fps)

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	6.0
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,Wi-Fi 7,dual-band Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, be
USB
Type-C, USB 3.2	Type-C, USB 3.2
Sensors
Accelerometer, Gyroscope, Compass, Barometer, Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Compass, Hall (for flip covers), 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, S-GPS, Glonass, Galileo, BeiDou, QZSS, NavIC, Wi-Fi positioning
Other
NFC, Infrared	NFC, Ultra Wideband (UWB), Infrared

Multimedia

Headphones
No 3.5mm jack	No 3.5mm jack
Speakers
Earpiece, Multiple speakers	Earpiece, Multiple speakers
Features
	Dolby Atmos

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, n13, n20, n25, n26, n28, n34, n38, n39, n40, n41, n48, n66, n77, n78, n79
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, 13, 17, 18, 19, 20, 25, 26, 28, 66
TDD Bands
38, 39, 40, 41, 42, 48	38, 39, 40, 41, 42, 48
3G Bands
1, 2, 4, 5, 6, 8	1, 2, 4, 5, 8
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s
Dual SIM
	Yes
SIM type
Dual Nano SIM + eSIM	Dual Nano SIM

Discover more

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