Xiaomi 17 vs Xiaomi 15 Ultra

Verdict

Xiaomi 17 scores higher on the OH Rank (78 vs 77), winning 4 of 10 categories including Performance and Battery. Xiaomi 15 Ultra is 3.2mm wider than Xiaomi 17. Xiaomi 17 is the more recent release, from Sep 27, 2025.

Score Breakdown

Category

Xiaomi 17

71.8mm (2.83in) · Sep 27, 2025 · Rank #28

Xiaomi 15 Ultra

75mm (2.95in) · Feb 27, 2025 · Rank #36
Performance /15
13
11
Battery /15
14
11
Screen /15
11
15
IP Protection /15
12
12
Main Camera /15
12
15
Selfie /5
4
3
Video /5
4
5
SD Memory /5
0
0
Software /5
5
5
Desktop Replacement /5
3
0
TOTAL
78
77
Xiaomi 17
71.8mm (2.83in) · Sep 27, 2025 · Rank #28
13+14+11+12+12+4+4+0+5+3 = 78
FLY* TOP Compact* TOP Battery Endurance* TOP Software

EDITORIAL: Xiaomi is going after Apple this year with matching gen number and addition of Pro and Pro Max models. Plain 17 adds a massive battery upgrade (from 5500 to 7000mAh, 6330mAh in EU), faster processor and storage, better selfie (finally with AF) and Dolby Atmos certified speakers. It is a battery endurance beast, providing 42+ hours to even a heavy user. Cameras are similar to excellent Xiaomi 15: competent performer with some excellent results. Apple flattery extended to physical design too - while last year's model was one of the nicest to hold because of softly curved front and back glass panels, the 17 has palm-cutting sharp frame with flat front and back.

PROs
compact, fast SD 8 Elite Gen 5 with UFS 4.1 performance, 48hr endurance from 7000mAh (6330mAh in EU) battery with sub-50min 100W charging (50W wireless). 460ppi LTPO AMOLED screen with Dolby Vision and >2100 PWM dimming, IP68 protection. excellent photo and video recording from a 50MP OIS PDAF main & tele cameras + 50MP ultrawide, great 50MP PDAF selfie, 6 years of OS updates, basic desktop replacement functionality baked into Android 17, fast USB-C 3.2 with Display Port and OTG
CONs
dim >1100nits screen, still no AF on ultrawide camera, no SDmemory, no desktop replacement feature
Xiaomi 15 Ultra
75mm (2.95in) · Feb 27, 2025 · Rank #36
11+11+15+12+15+3+5+0+5+0 = 77
FLY* TOP Screen* TOP Camera* TOP Video Recording

EDITORIAL: This year, one of the TOP 5 camera phones came with a significant battery endurance improvement. The main camera retained the 1" sensor, lost the variable aperture but the 2 zoom cameras are now better then ever. There is no AF on the selfie and like last year, there is an extra camera grip available for the ultimate photo & video creation. Still missing are SD memory card and the desktop replacement feature. Promised are 4 years of OS updates.

PROs
SnapDragon 8 Elite processor with UFS 4.1 fast overall performance, a 5410mAh Silicone Carbon battery (6000mAh in China) with a >30hr endurance, 90W wired or 80W wireless charging, >1500nits bright 500+ppi LTPO OLED screen with Dolby Vision, one of the best cameras on the market: 50MP 23mm main + 200MP 100mm tele + 50MP 70mm tele (all with PDAF & OIS) + 50MP 14mm PDAF ultrawide, great back camera recording, 4 years of OS updates
CONs
32MP 21mm selfie with no OIS or even AF, lack of expandable SDmemory storage (while offering 8k video recording) and a lack of desktop replacement software

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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