Xiaomi 15 Ultra vs Apple iPhone 17 Pro Max | Specs, Camera & Battery

Xiaomi 15 Ultra vs Apple iPhone 17 Pro Max

Tests and specifications

Comparison table of technical specifications and tests

Price

Model	Storage Variant	Price (USD)
Xiaomi 15 Ultra	12GB + 256GB	$899
	12GB + 512GB	$999
	16GB + 512GB	$1,099
	16GB + 1TB	$1,199
iPhone 17 Pro Max	256GB	$1,199
	512GB	$1,399
	1TB	$1,599
	2TB	$1,799

Display (Xiaomi 15 Ultra vs Apple iPhone 17 Pro Max)

Feature	Xiaomi 15 Ultra	iPhone 17 Pro Max
Type	AMOLED	OLED
Size	6.73 inches	6.9 inches
Resolution	1440 x 3200 px	1320 x 2868 px
Aspect ratio	20:9	19.5:9
PPI	522	460
Refresh rate	120 Hz	120 Hz
Adaptive refresh rate	Yes (1–120 Hz)	Yes (1–120 Hz)
Max brightness	1600 nits	3000 nits
HDR brightness	3200 nits	1600 nits
HDR support	Yes, Dolby Vision	Yes, Dolby Vision
Touch sampling rate	300 Hz	–
Screen protection	Xiaomi Shield Glass 2.0	–
Screen-to-body ratio	90%	91.6%

Design & Build (Xiaomi 15 Ultra vs Apple iPhone 17 Pro Max)

Feature	Xiaomi 15 Ultra	iPhone 17 Pro Max
Height	161.3 mm	163.4 mm
Width	75.3 mm	78 mm
Thickness	9.35 mm	8.75 mm
Weight	226 g	233 g
Waterproof	IP68	IP68
Cooling	Vapor chamber	Vapor chamber
Rear	Glass	Glass
Frame	Metal	Metal
Colors	White, Black, Silver, Green	Silver, Blue, Orange
Fingerprint	Yes, in-display	No

Performance

Feature	Xiaomi 15 Ultra	iPhone 17 Pro Max
SoC	Snapdragon 8 Elite	Apple A19 Pro
CPU cores	8 (2+6)	6 (2+4)
Max clock	4.32 GHz	4.26 GHz
Lithography	3 nm (TSMC)	3 nm (TSMC)
GPU	Adreno 830	Apple A19 Pro GPU
GPU clock	1100 MHz	1620 MHz
FLOPS	~3379 GFLOPS	~2488 GFLOPS

Battery

Feature	Xiaomi 15 Ultra	iPhone 17 Pro Max
Capacity	5410 mAh	5088 mAh
Charging power	90 W	40 W
Wireless charging	80 W	25 W
Reverse charging	Yes	Yes
Fast charging	72% in 30 min	50% in 20 min
Full charge	0:51 hr	–
Web browsing	12:19 hr	–
Video playback	18:43 hr	–
Gaming	6:45 hr	–
Standby	141 hr	–
Overall battery life	30:03 hr	n/a

Cameras

Feature	Xiaomi 15 Ultra	iPhone 17 Pro Max
Main sensor	50 MP (Sony LYT-900)	48 MP
Telephoto	200 MP + 50 MP	48 MP
Ultra-wide	50 MP	48 MP
Optical zoom	4.3x	4x
8K video	Up to 30 FPS	No
4K video	120 FPS	120 FPS
Slow motion	1920 FPS (1080p)	240 FPS (1080p)
DxOMark photo	158	n/a
DxOMark video	134	n/a

Selfie Camera

Feature	Xiaomi 15 Ultra	iPhone 17 Pro Max
Resolution	32 MP	18 MP
Aperture	f/2.0	f/1.9
Autofocus	No	Yes
Stabilization	Digital	Optical
Video	4K at 60 FPS	4K at 60 FPS
Depth sensor	No	Yes (TOF 3D)

FAQ questions for the Xiaomi 15 Ultra vs iPhone 17 Pro Max

1. Which phone has the better display, the Xiaomi 15 Ultra or the iPhone 17 Pro Max?

The Xiaomi 15 Ultra comes with a 6.73-inch AMOLED display at 1440 x 3200 pixels resolution, offering a very high pixel density of 522 ppi. It also supports up to 3200 nits peak brightness in HDR and has advanced screen protection (Xiaomi Shield Glass 2.0). On the other hand, the iPhone 17 Pro Max features a slightly larger 6.9-inch OLED display with 1320 x 2868 resolution and 460 ppi. While the iPhone offers excellent brightness up to 3000 nits, the Xiaomi has the advantage in resolution, pixel density, and HDR peak brightness.

2. Which smartphone delivers better performance in benchmarks?

The Xiaomi 15 Ultra is powered by the Qualcomm Snapdragon 8 Elite, with 8 cores and a max clock of 4.32 GHz, supported by the Adreno 830 GPU. It scored over 2.54 million in AnTuTu and 9,065 in Geekbench multi-core tests. The iPhone 17 Pro Max runs on Apple’s A19 Pro chipset with 6 cores and a strong custom GPU. It scored around 2.09 million in AnTuTu and 9,746 in Geekbench multi-core tests. The iPhone leads in single-core performance, while the Xiaomi leads in GPU and overall AnTuTu scores.

3. How do the cameras of Xiaomi 15 Ultra and iPhone 17 Pro Max compare?

The Xiaomi 15 Ultra is equipped with a quad-lens setup, including a 50 MP standard lens, a massive 200 MP telephoto lens, another 50 MP telephoto, and a 50 MP ultrawide camera. It supports up to 8K video recording at 30 FPS and advanced features like RAW and Pro mode. The iPhone 17 Pro Max has a triple-lens system with three 48 MP cameras (standard, telephoto, and ultrawide), supporting 4K recording at 120 FPS. The Xiaomi provides higher resolution zoom and 8K capability, while the iPhone focuses on video smoothness, color science, and stability.

4. Which phone offers longer battery life and faster charging?

The Xiaomi 15 Ultra comes with a 5410 mAh Silicon-Carbon battery, supporting 90W wired charging, 80W wireless charging, and reverse wireless charging. It can reach 72% charge in just 30 minutes. Battery life tests show over 30 hours of mixed usage. The iPhone 17 Pro Max has a 5088 mAh Li-Ion battery with 40W wired and 25W wireless charging. It supports reverse charging but charges slower compared to the Xiaomi. For heavy users, the Xiaomi offers both longer endurance and faster charging speeds.

5. What are the key differences in design and build quality?

Both phones use premium materials with glass backs and metal frames. The Xiaomi 15 Ultra measures 9.35 mm in thickness and weighs 226 g, while the iPhone 17 Pro Max is slimmer at 8.75 mm but slightly heavier at 233 g. Both are IP68 certified for water and dust resistance. The Xiaomi features an in-display fingerprint scanner, while the iPhone relies on Face ID. The iPhone also introduces eSIM-only support in some regions, while the Xiaomi continues with dual Nano-SIM slots.