Xiaomi 18 Pro vs Vivo X300 Ultra

Verdict

Xiaomi 18 Pro scores higher on the OH Rank (86 vs 81), winning 3 of 10 categories including Performance and Battery. Vivo X300 Ultra is 4.8mm wider than Xiaomi 18 Pro. Xiaomi 18 Pro is the more recent release, from Sep 23, 2026.

Score Breakdown

Category

Xiaomi 18 Pro

72mm (2.83in) · Sep 23, 2026 · Rank #1

Vivo X300 Ultra

76.8mm (3.02in) · Apr 3, 2026 · Rank #7
Performance /15
15
13
Battery /15
14
11
Screen /15
13
15
IP Protection /15
12
12
Main Camera /15
15
15
Selfie /5
5
5
Video /5
4
5
SD Memory /5
0
0
Software /5
5
5
Desktop Replacement /5
3
0
TOTAL
86
81
Xiaomi 18 Pro
72mm (2.83in) · Sep 23, 2026 · Rank #1
15+14+13+12+15+5+4+0+5+3 = 86
SUPERIOR* TOP Performance* TOP Battery Endurance* TOP Camera* TOP Selfie* TOP Software

EDITORIAL: (this is a pre-test listing based on reasonable expectation of battery and imaging performance) On the day Qualcomm announced it's 2nm Snapdragon 8 Elite Gen 6 chip it got released in the latest Xiaomi phones. The 18 Pro Max gets the "Extreme" version that should deliver somewhat better performance across the board but 18 Pro will still beat the other competition. Unlike 17 Pro, the latest model is going global!

PROs
unique 2 screen design, very fast SD 8 Elite Gen 6 with UFS 4.1 performance, >42hr endurance from a 7000mAh Si-C battery with sub-60min 100W (50W wireless) charging, ~1600nits 420ppi 120Hz LTPO AMOLED screen with Dolby Vision, IP68 protection, excellent 200MP 23mm OIS main + 200MP 75mm OIS periscope telephoto + 50MP 17mm ultrawide (all with PDAF) setup, excellent 50MP 21mm PDAF selfie, very good video recording, stabile and feature rich HyperOS 4 with 6 years of OS updates, basic desktop replacement functionality built into Android 17, fast USB-C 3.2 with OTG and Display Port, sub €800 at lounch
CONs
no memory expansion slot, limited market availability
Vivo X300 Ultra
76.8mm (3.02in) · Apr 3, 2026 · Rank #7
13+11+15+12+15+5+5+0+5+0 = 81
SUPERIOR* TOP Software* TOP PHOTO/VIDEO

EDITORIAL: Unlike X200 Ultra, the X300 Ultra is sold outside of China. Vivo is delivering it's finest camera-phone by putting a double 200MP sensor camera (industry first) and offering not one but two optional tele lenses (a 200mm and a 400mm). Lens coating is still by Zeiss but like with other current Vivo's phones: all other camera tech (hardware and software) is home grown.

PROs
solid build, top Snapdragon 8 Elite Gen 5 with UFS 4.1 performance, >30hr endurance from a 6600mAh (6400 in EU) Si-C battery with sub-50min 100W (40W wireless) charging, outstanding 144Hz LTPO AMOLED screen with >500ppi, Dolby Vision and >1900nits brightness, IP69 protection, outstanding imaging from 200MP 35mm main + 200MP 85mm periscope telephoto + 50MP 14mm ultrawide (all with OIS PDAF) setup, additional 200mm and 400mm Zeiss zoom lenses, excellent 50MP 24mm AF selfie, great video recording, 5 years of feature and AI tricks rich OriginOS updates, fast USB-C 3.2 with DisplayPort and OTG
CONs
big and >230g hefty, hard to use one hand, battery endurance could be better for a phone this size and with LTPO screen, no expandable memory slot, no desktop replacement functionality, very expensive

Both phones here were scored by me, using the same ten categories, with no ads, sponsorships, or manufacturer relationships — this comparison is as objective and honest as it gets.

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