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Smartphone comparison

Xiaomi 15 Ultra vs iPhone 18 Pro Max

Compare cameras, battery, screen and everyday features.

Compared products
01Selected
Xiaomi 15 Ultra

Xiaomi 15 Ultra

  • About 120 Hz display refresh rate.
  • About 6.73 inch screen.
  • Qualcomm SM8750-AB Snapdragon 8 Elite (3 nm) processor.
  • Storage: UFS 4.1.
  • 90 W rated wired charging power.
KSh 142,000In Stock
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02
iPhone 18 Pro Max 256GB

iPhone 18 Pro Max 256GB

  • 249 g.
  • About 6.9 inch screen.
  • Apple A20 Pro (2 nm) processor.
  • 12 GB RAM in this version.
  • 256 GB storage in this version.
KSh 204,000In Stock
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2 spaces available

Xiaomi 17 Pro MaxKSh 130,000
Xiaomi 17 UltraKSh 164,000
Google Pixel 10 Pro XLKSh 129,500
Samsung Galaxy S26 UltraKSh 124,000
Google Pixel 11 Pro XL 256GBKSh 133,000
Vivo X300 Pro 5GKSh 149,000
iPhone 17 ProKSh 155,000
2 of 4 products

Our quick verdict

The Xiaomi 15 Ultra runs Android, has a sharper screen, charges faster wirelessly (80 W) and has sharper selfies (32 MP) and 8K video recording, while the iPhone 18 Pro Max runs iOS and has a larger 6.9-inch screen and a deeper water-immersion rating (6 m).

Display

Xiaomi 15 Ultra
About 6.73 inch screen
iPhone 18 Pro Max
About 6.9 inch screen

Performance

Xiaomi 15 Ultra
Qualcomm SM8750-AB Snapdragon 8 Elite (3 nm) processor
iPhone 18 Pro Max
Apple A20 Pro (2 nm) processor

Storage

Xiaomi 15 Ultra
UFS 4.1
iPhone 18 Pro Max
NVMe

Memory

Xiaomi 15 Ultra
Up to 16 GB RAM
iPhone 18 Pro Max
12 GB RAM

Battery capacity

Xiaomi 15 Ultra
5,410 mAh battery
iPhone 18 Pro Max
Market-dependent versions:

Key differences

The main differences to help you choose.

Xiaomi 15 Ultra

  • Sharper screen: 522 ppi (vs 460 ppi).
  • Faster wireless charging: 80 W (vs 25 W).
  • Higher-resolution selfie camera: 32 MP (vs 18 MP).
  • Lighter: 226 g (vs 249 g).
  • 8K video recording (vs 4K).

iPhone 18 Pro Max

  • Higher rated immersion depth: 6 m (vs 1.5 m), both IP68.
  • Larger 6.9-inch screen (vs 6.73-inch).
  • Records ProRes RAW and Apple Log 2 for editing.

What matters most to you?

Choose any priorities

How each product answers the questions buyers ask most. Tick a topic to add it, untick one to hide it.

More topicsFewer topics
6 priorities selected.
How each product answers the selected priorities
PriorityXiaomi 15 UltraiPhone 18 Pro Max
Display6.73-inch OLED display, 120 Hz, 522 ppi6.9-inch OLED display, 120 Hz, 460 ppi
Camera50 MP main camera with OIS, plus a 3x telephoto camera48 MP main camera with OIS, plus a 4x telephoto camera
PerformanceQualcomm Snapdragon 8 Elite processorApple A20 Pro processor
StorageUp to 1 TB storage256 GB storage
Battery capacity5,410 mAh batteryMarket-dependent versions:
Charging90 W wired, 80 W wireless chargingWired, PD3.2, AVS, 50% in 15 min

Detailed comparison

Explore the full specifications, section by section.

General

General specifications comparison
SpecificationXiaomi 15 UltraiPhone 18 Pro Max 256GB
BrandXiaomiApple
Model15 UltraApple iPhone 18 Pro Max
Announced2025, February 272026, September 09
Release statusAvailable. Released 2025, February 27Available. Released 2026, September 18
Model numbers25010PN30GA3717, A3473, A3716, A3718
Device type / form family—Smartphone
Performance benchmarks—AnTuTu: 3463072 (v11); GeekBench: 12794 (v6), 11558 (v7); 3DMark: 7931 (Wild Life Extreme)
Measured display brightness—969 nits max brightness (measured)
Battery test—Active use score 19:20h
EU label energy—Class A
EU label battery—62:00h endurance, 1000 cycles
EU label free fall—Class B (180 falls)
EU label repairability—Class C

Design

Design specifications comparison
SpecificationXiaomi 15 UltraiPhone 18 Pro Max 256GB
Dimensions161.3 x 75.3 x 9.4 mm (6.35 x 2.96 x 0.37 in)163.4 x 78 x 8.8 mm (6.43 x 3.07 x 0.35 in)
Weight226 g or 229 g (7.97 oz)249 g (8.78 oz)
Build materialsGlass front, glass-fiber reinforced plastic back or silicone polymer back (eco leather), aluminum frameGlass front (Ceramic Shield 2), aluminum frame, aluminum back/ glass back (Ceramic Shield)
Additional body featuresAerospace-grade glass fiber—

Display

Display specifications comparison
SpecificationXiaomi 15 UltraiPhone 18 Pro Max 256GB
Display6.73 inches, 108.9 cm2 (~89.7% screen-to-body ratio); LTPO AMOLED, 68B colors, 120Hz, 1920Hz PWM, Dolby Vision, HDR10+, HDR Vivid, 3200 nits (peak)LTPO Super Retina XDR OLED, 120Hz, HDR10, Dolby Vision, 1000 nits (typ), 1600 nits (HBM), 3000 nits (peak); 6.9 inches, 115.6 cm2 (~90.7% screen-to-body ratio)
Screen resolution1440 x 3200 pixels, 20:9 ratio (~522 ppi density)1320 x 2868 pixels, 19.5:9 ratio (~460 ppi density)
Display protectionXiaomi Shield Glass 2.0Ceramic Shield 2
Display featuresLTPO AMOLED, 68B colors, 120Hz, 1920Hz PWM, Dolby Vision, HDR10+, HDR Vivid, 3200 nits (peak)Anti-reflective coating
Display technology—LTPO Super Retina XDR OLED
Display size—6.9 inches, 115.6 cm2 (~90.7% screen-to-body ratio)
Refresh rate—120Hz
Brightness—1000 nits (typ), 1600 nits (HBM), 3000 nits (peak)
HDR formats—HDR10, Dolby Vision
Pixel density—~460 ppi
Aspect ratio—19.5:9 ratio
Screen-to-body ratio—~90.7% screen-to-body ratio

Performance

Performance specifications comparison
SpecificationXiaomi 15 UltraiPhone 18 Pro Max 256GB
ProcessorQualcomm SM8750-AB Snapdragon 8 Elite (3 nm)Apple A20 Pro (2 nm)
CPUOcta-core (2x4.32 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M)Hexa-core (2x4.93 GHz + 4x2.64 GHz)
GPUAdreno 830Apple GPU (7-core graphics)
Process node—2 nm

Memory & Storage

Memory & Storage specifications comparison
SpecificationXiaomi 15 UltraiPhone 18 Pro Max 256GB
RAM12GB / 16GB12GB
Storage256GB / 512GB / 1TB256GB
Storage technologyUFS 4.1NVMe
Expandable storageNoNo
Memory configurations256GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM256GB 12GB RAM, 512GB 12GB RAM, 1TB 12GB RAM, 2TB 12GB RAM

Cameras

Cameras specifications comparison
SpecificationXiaomi 15 UltraiPhone 18 Pro Max 256GB
Rear camera50 MP, f/1.6, 23mm (wide), 1.0"-type, 1.6µm, dual pixel PDAF, OIS 50 MP, f/1.8, 70mm (telephoto), 1/2.51", 0.7µm, dual pixel PDAF (10cm - ∞), OIS, 3x optical zoom 200 MP, f/2.6, 100mm (periscope telephoto), 1/1.4", 0.56µm, multi-directional PDAF, OIS, 4.3x optical zoom 50 MP, f/2.2, 14mm, 115˚ (ultrawide), 1/2.76", 0.64µm, dual pixel PDAF TOF 3D, (depth)48 MP, f/1.5-4.0, 24mm (wide), 1/1.28", 1.22µm, dual pixel PDAF, sensor-shift OIS (gen2); 48 MP, f/2.8, 100mm (periscope telephoto), 1/2.55", 0.7µm, PDAF, 3D sensor‑shift OIS, 4x optical zoom; 48 MP, f/2.2, 13mm, 120˚ (ultrawide), 1/2.55", 0.7µm, PDAF; TOF 3D LiDAR scanner (depth)
Front camera32 MP, f/2.0, 21mm (wide), 1/3.14", 0.7µm18 MP multi-aspect, f/1.9, 20mm (ultrawide), PDAF; SL 3D, (depth/biometrics sensor)
Rear camera featuresLaser AF, color spectrum sensor, Leica lenses, Dual-LED flash, HDR, panorama, 67mm filter ring holder (optional)Dual-LED dual-tone flash, HDR (photo/panorama), Cinematic from regular video
Rear camera video8K@30fps, 4K@30/60/120fps, 1080p@30/60/120/240/480/960/1920fps, gyro-EIS, Dolby Vision HDR 10-bit rec. (4K@60fps, 1080p)4K@24/25/30/60/100/120fps, 1080p@25/30/60/120/240fps, 10-bit HDR, Dolby Vision HDR (up to 120fps), ProRes, ProRes RAW (up to 120fps), Apple Log 2, 3D (spatial) video/audio, stereo sound rec.
Front camera featuresHDR, panoramaHDR, Dolby Vision HDR, 3D (spatial) audio, stereo sound rec., ProRes RAW, Apple Log 2
Front camera video4K@30/60fps, 1080p@30/60fps, gyro-EIS4K@24/25/30/60fps, 1080p@25/30/60/120fps, gyro-EIS
Wide camera—48 MP, f/1.5-4.0, 24mm (wide), 1/1.28", 1.22µm, dual pixel PDAF, sensor-shift OIS (gen2)
Periscope telephoto camera—48 MP, f/2.8, 100mm (periscope telephoto), 1/2.55", 0.7µm, PDAF, 3D sensor‑shift OIS, 4x optical zoom
Ultra-wide camera—48 MP, f/2.2, 13mm, 120˚ (ultrawide), 1/2.55", 0.7µm, PDAF
Additional rear cameras—TOF 3D LiDAR scanner (depth)

Battery & Charging

Battery & Charging specifications comparison
SpecificationXiaomi 15 UltraiPhone 18 Pro Max 256GB
BatteryMarket-dependent versions: · Si/C Li-Ion 5410 mAh - Global · Si/C Li-Ion 6000 mAh - ChinaMarket-dependent versions:; · Li-Ion 5391 mAh - Nano SIM model; · Li-Ion 5567 mAh - eSIM only model
Charging90W wired, PD3.0, QC3+ 80W wireless 10W reverse wirelessWired, PD3.2, AVS, 50% in 15 min; 25W wireless MagSafe/Qi2, 50% in 30 min (15W - China); 4.5W reverse wired
Battery technology—Li-Ion
Wireless charging—25W wireless MagSafe/Qi2, 50% in 30 min (15W - China)
Reverse charging—4.5W reverse wired

Software

Software specifications comparison
SpecificationXiaomi 15 UltraiPhone 18 Pro Max 256GB
Operating systemAndroid 15, up to 4 major OS updates, HyperOS 3iOS 27

Network

Network specifications comparison
SpecificationXiaomi 15 UltraiPhone 18 Pro Max 256GB
NetworkGSM / HSPA / LTE / 5GGSM / HSPA / LTE / 5G
SIM· Nano-SIM + Nano-SIM · Nano-SIM + Nano-SIM + eSIM + eSIM (max 2 at a time)· Nano-SIM + eSIM + eSIM (max 2 at a time; International); · eSIM + eSIM (8 or more, max 2 at a time; USA); · Nano-SIM + Nano-SIM + eSIM + eSIM (max 2 at a time; China)
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 42, 48, 66, 71 - International; 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 42, 48, 66 - China1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 30, 32, 34, 38, 39, 40, 41, 42, 48, 53, 66, 106 - A3717; 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 29, 30, 32, 34, 38, 39, 40, 41, 42, 48, 53, 66, 71 - A3473; 1, 2, 3, 4, 5, 7, 8, 11, 12, 13, 14, 17, 18, 19, 20, 21, 25, 26, 28, 29, 30, 32, 34, 38, 39, 40, 41, 42, 48, 53, 66, 71, 106 - A3716; 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 30, 32, 34, 38, 39, 40, 41, 42, 48, 66, 106 - A3718
5G bands1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 38, 40, 41, 48, 66, 71, 75, 77, 78, 79 SA/NSA - International; 1, 2, 3, 5, 7, 8, 12, 20, 26, 28, 38, 40, 41, 48, 66, 77, 78, 79, 80, 81, 83, 84, 89 SA/NSA - China1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 30, 38, 40, 41, 48, 53, 66, 70, 75, 77, 78, 79 SA/NSA/Sub6 - A3717; 1, 2, 3, 5, 7, 8, 12, 14, 20, 25, 26, 28, 29, 30, 38, 40, 41, 48, 53, 66, 70, 71, 75, 77, 78, 79, 258, 260, 261 SA/NSA/Sub6/mmWave - A3473; 1, 2, 3, 5, 7, 8, 12, 14, 20, 25, 26, 28, 29, 30, 38, 40, 41, 48, 53, 66, 70, 71, 75, 77, 78, 79 SA/NSA/Sub6 - A3716; 1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 30, 38, 40, 41, 48, 66, 70, 75, 77, 78, 79 SA/NSA/Sub6 - A3718
Network speedHSPA, LTE, 5GHSPA, LTE, 5G

Connectivity

Connectivity specifications comparison
SpecificationXiaomi 15 UltraiPhone 18 Pro Max 256GB
NFCYesYes
Bluetooth6.0, A2DP, LE, aptX HD, aptX Adaptive, LHDC 56.0, A2DP, LE
Wi-FiWi-Fi 802.11 a/b/g/n/ac/6e/7, dual-band or tri-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, hotspot
PositioningGPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5), GLONASSGPS (L1+L5), GLONASS, GALILEO, BDS, QZSS, NavIC
RadioNoNo
USBUSB Type-C 3.2 Gen 2, DisplayPort, OTGUSB Type-C 3.2 Gen 2, DisplayPort
Satellite featuresTwo-way satellite communication (China model only)Emergency SOS, Messages and Find My via satellite
InfraredYes—
Ultra Wideband (UWB)—Ultra Wideband (UWB) support (gen2 chip)

Durability

Durability specifications comparison
SpecificationXiaomi 15 UltraiPhone 18 Pro Max 256GB
Water resistanceIP68 dust tight and water resistant (immersible up to 1.5m for 30 min)IP68 dust tight and water resistant (immersible up to 6m for 30 min)

Features

Features specifications comparison
SpecificationXiaomi 15 UltraiPhone 18 Pro Max 256GB
SensorsFingerprint (under display, ultrasonic), accelerometer, proximity, gyro, compass, barometerFace ID, accelerometer, gyro, proximity, compass, barometer
ColorsBlack, White, Silver Chrome, GreenBlack, Silver, Glacier, Burgundy
Additional featuresTwo-way satellite communication (China model only)—

Audio

Audio specifications comparison
SpecificationXiaomi 15 UltraiPhone 18 Pro Max 256GB
LoudspeakersYes, with stereo speakersYes, with stereo speakers
3.5 mm headphone jackNoNo
Audio features24-bit/192kHz Hi-Res & Hi-Res Wireless audio; Qualcomm XPAN (24-bit/96kHz audio)—

Regulatory

Regulatory specifications comparison
SpecificationXiaomi 15 UltraiPhone 18 Pro Max 256GB
SAR (EU)1.00 W/kg (head)     1.00 W/kg (body)—

Tests

Tests specifications comparison
SpecificationXiaomi 15 UltraiPhone 18 Pro Max 256GB
Measured loudspeaker loudness-24.1 LUFS (Very good)-25.0 LUFS (Very good)
Active use battery scoreActive use score 16:13h—

EU label

EU label specifications comparison
SpecificationXiaomi 15 UltraiPhone 18 Pro Max 256GB
EnergyClass A—
Battery58:58h endurance, 1000 cycles—
Free fallClass C (90 falls)—
RepairabilityClass C—

Similarities

  • Both have 120 Hz displays.
  • Both are rated IP68.
  • Both have optical image stabilisation.
  • Both support Wi-Fi 7.
  • Both use Bluetooth 6.0.
  • Both have NFC.

In summary

Get the Xiaomi 15 Ultra if you want Android and a sharper screen, or the iPhone 18 Pro Max if you would rather have iOS and a larger 6.9-inch screen.

Back to compared products ↑

In-stock alternatives

Xiaomi 17 Pro MaxFor Xiaomi 15 UltraXiaomi 17 Pro MaxView product ↗Google Pixel 10 Pro XLFor Xiaomi 15 UltraGoogle Pixel 10 Pro XLView product ↗iPhone 18 Pro 512GBFor iPhone 18 Pro Max 256GBiPhone 18 Pro 512GBView product ↗Samsung Galaxy S26 UltraFor iPhone 18 Pro Max 256GBSamsung Galaxy S26 UltraView product ↗

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