Xiaomi 17 Ultra vs vivo X300 Ultra 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.

Xiaomi 17 Ultra vivo X300 Ultra
Released · Dec 27, 2025
Announced · Mar 30, 2026
6.9-inch · 2608x1200px
6.8-inch · 3168x1440px
Triple camera
Triple camera
12GB · 512GB
12GB · 256GB
6800 mAh
6600 mAh
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Availability

Officially announced
Dec 25, 2025 Mar 30, 2026
Prices (MSRP)
16GB/512GB - €1499

Design

Dimensions
6.41 x 3.06 x 0.33 inches
162.9 x 77.6 x 8.5 mm
6.42 x 3.02 x 0.32 inches (~0.63 inches with camera bump)
162.98 x 76.81 x 8.19 mm (~15.96 mm with camera bump)
Weight
8.11 oz / 230.0 g 8.18 oz / 232.0 g
Materials
Back: Plastic
Frame: Aluminum
Back: Glass
Frame: Aluminum
Resistance
Water, Dust; IP69 Yes; IP69
Biometrics
Ultrasonic in-screen fingerprint Optical in-screen fingerprint
Keys
Right: Volume control, Lock/Unlock key Right: Volume control, Lock/Unlock key
Colors
Black, White, Starry Green, Purple Black, White, Soft Green

Display

Size
6.9-inch, 93.16% screen-to-body 6.8-inch, 90.04% screen-to-body
Type
AMOLED, 120Hz, Dolby Vision, 3500 nits AMOLED, 144Hz, HDR
Resolution
2608x1200px, 19.5:5 ratio, 416 PPI 3168x1440px, 19.8:9 ratio, 510 PPI
Features
Ambient light sensor, Proximity sensor
PhoneArena Display Test
Bright Max (20% APL)
3515 (Excellent) Untested
Bright Min
1 (Excellent) Untested

Hardware

System chip
Snapdragon 8 Elite Gen 5 SM8850-AC (3 nm) Snapdragon 8 Elite Gen 5 SM8850-AC (3 nm)
Processor
Octa-core
2x4.6GHz Oryon V3 Phoenix L
6x3.62GHz Oryon V3 Phoenix M
Octa-core
2x4.61GHz Oryon V3 Phoenix L
6x3.53GHz Oryon V3 Phoenix M
GPU
Adreno 840 Adreno 840
Memory
12GB/512GB (UFS 4.1)
16GB/512GB
16GB/1TB
12GB (LPDDR5X)/256GB (UFS 4.1)
12GB/512GB
16GB/512GB
16GB/1TB
Storage expansion
not expandable not expandable
OS
Android (16) Android (16)
PhoneArena Performance Test
GeekBench 6 Single
3525 Untested
GeekBench 6 Multi
10545 Untested
3D Mark High
6305 Untested
3D Mark Low
3899 Untested

Battery

Type
6800 mAh, Si - Carbon 6600 mAh, Si - Carbon
Charging
Fast charging
Qi wireless charging, Reverse wireless charging, Reverse wired charging
Qi wireless charging, Reverse wired charging
Charge speed
Wired: 90.0W
Wireless: 50.0W
Wired: 100.0W
Wireless: 40.0W
PhoneArena Battery Tests
Battery Life Estimate
9h 2min
Browsing
22h 39min
Video
14h 9min
Gaming
7h 10min
Battery Life Estimate
Untested
Browsing
Untested
Video
Untested
Gaming
Untested

Camera

Rear
Triple camera Triple camera
Main camera
50 MP
Aperture size: F1.7
Focal length: 23 mm
Sensor size: 1"
200 MP (OIS, Laser autofocus, PDAF)
Sensor name: Sony LYT-901
Aperture size: F1.9
Focal length: 35 mm
Sensor size: 1/1.12″
Second camera
50 MP (Ultra-wide)
Aperture size: F2.2
Focal Length: 14 mm
Sensor size: 1/2.76"
Pixel size: 0.64 μm
50 MP (Ultra-wide, OIS, PDAF)
Sensor name: Sony LYT-818
Aperture size: F2.0
Focal Length: 14 mm
Sensor size: 1/1.28"
Pixel size: 1.22 μm
Third camera
200 MP (Telephoto, Periscope)
Optical zoom: 4.2x
Aperture size: F2.4/F3.0
Focal Length: 100 mm
Sensor size: 1/1.4"
Pixel size: 0.56 μm
200 MP (Telephoto, Periscope, OIS, PDAF)
Sensor name: Samsung ISOCELL HP0
Optical zoom: 3.7x
Aperture size: F2.7
Focal Length: 85 mm
Sensor size: 1/1.4"
Pixel size: 0.56 μm
Fourth camera
ToF 3D depth sensing
Flash
LED LED
Video recording
8K UHD (30 fps), 4K UHD (120 fps) 8K UHD (30 fps), 4K UHD (120 fps), 1080p (240 fps)
OIS, HDR
Front
50 MP 50 MP
Video capture: 4K UHD (60 fps)
PhoneArena Camera Tests
155
Overall
163
Photo
147
Video
N/A
Overall
N/A
Photo
N/A
Video

Connectivity & Features

Bluetooth
5.4 5.4
WLAN
Wi-Fi 6,Wi-Fi 7
Wi-Fi Direct, Hotspot
Wi-Fi 6,Wi-Fi 6E,Wi-Fi 7
MIMO, Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, ax
USB
Type-C, USB 3.2 Type-C, USB 3.2
Sensors
Accelerometer, Gyroscope, Compass, Barometer, Emergency SOS via satellite (SMS sending/receiving), Ambient light sensor, Proximity sensor Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor
Hearing aid compatible
M3/T4
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, QZSS, NavIC, Cell ID, Wi-Fi positioning GPS, A-GPS, Glonass, Galileo, BeiDou, QZSS, Cell ID, Wi-Fi positioning
Other
NFC, Infrared NFC, Infrared

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, n38, n40, n41, n48, n66, n77, n78, n80, n84, SA, NSA n1, n2, n3, n5, n7, n12, n20, n25, n26, n28, n38, n40, n41, n48, n66, n70, n78, n79, n80
LTE Bands
1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28, 66 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28, 66
TDD Bands
34, 38, 39, 40, 41, 42, 48 34, 38, 39, 40, 41, 42, 43, 48
3G Bands
1, 2, 4, 5, 6, 8, 19
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s
SIM type
eSIM, Dual Nano SIM Dual Nano SIM
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