Apple iPhone 18 Pro vs Xiaomi 15 Ultra
A spec-by-spec comparison of the Apple iPhone 18 Pro and the Xiaomi 15 Ultra, taken from their full specification sheets. Green marks the better value in each measured row.
Head to head
| Apple iPhone 18 Pro | Xiaomi 15 Ultra |
|---|
| Price | $1,199 | $1,195 |
| Our rating | 9/10 | 9/10 |
| Battery | 4,288 mAh | 5,410 mAh |
| Wired charging | — | 90W |
| RAM (max) | — | 16 GB |
| Storage (max) | 512 GB | 512 GB |
| Screen size | 6.3 in | 6.73 in |
| Refresh rate | 120 Hz | 120 Hz |
| Main camera | 48 MP | 200 MP |
| Weight (lower is lighter) | 206 g | 226 g |
| Released | Sep 2026 | Feb 2025 |
Summary: Apple iPhone 18 Pro is ahead on weight (lower is lighter). Xiaomi 15 Ultra is ahead on battery, screen size, main camera.
★ Which should you buy? Xiaomi 15 Ultra is the stronger overall pick on the measured specs.
Researched with AI assistance by infozme.com from manufacturer and retailer sources — see how we research & rate phones.
Display
| Apple iPhone 18 Pro | Xiaomi 15 Ultra |
|---|
| Type | Super Retina XDR OLED, ProMotion (120Hz), Always-On display, HDR, True Tone, Wide color (P3), Haptic Touch | LTPO AMOLED, 1B colors, 120Hz, Dolby Vision, HDR10+, 3528.5 nits (peak) |
| Size | 6.3 inches (diagonal) | 6.73 inches |
| Resolution | 2622 x 1206 pixels, 460 ppi | 1440 x 3200 pixels |
| Brightness | 1000 nits max typical, 1600 nits peak HDR, 3000 nits peak outdoor | — |
| Protection | Ceramic Shield (latest generation) | Xiaomi Shield Glass 2.0 |
| Features | Smaller Dynamic Island | — |
Platform
| Apple iPhone 18 Pro | Xiaomi 15 Ultra |
|---|
| OS | iOS 27 | Android 15, HyperOS 2 |
| Chipset | Apple A20 Pro (2nm process) | Qualcomm Snapdragon 8 Elite (4 nm) |
| CPU | — | Octa-core (2x Prime Core 4.32 GHz, 6x Performance Core 3.53 GHz) |
| GPU | — | Adreno™ GPU |
Memory
| Apple iPhone 18 Pro | Xiaomi 15 Ultra |
|---|
| RAM | 12GB LPDDR5X | — |
| Internal Storage | 256GB, 512GB, 1TB, 2TB options | — |
| Card Slot | No | No |
| Internal | — | 256GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM |
Main Camera
| Apple iPhone 18 Pro | Xiaomi 15 Ultra |
|---|
| Configuration | Triple | — |
| Lenses | 48MP Main (with variable aperture), 48MP Ultra Wide, 48MP Telephoto | — |
| Features | Second-generation sensor-shift optical image stabilization, 100% Focus Pixels, super-high-resolution photos (24MP and 48MP), ProRes video recording, Cinematic mode, Action mode | Leica lenses, Dual-LED flash, HDR, panorama, variable aperture |
| Quad | — | 50 MP, f/1.6, 23mm (wide), 1.0"-type, multi-directional PDAF, Laser AF, OIS; 50 MP, f/2.2, 12mm, 122˚ (ultrawide), AF; 50 MP, f/1.8, 75mm (telephoto), PDAF, OIS, 3.2x optical zoom; 200 MP, f/2.6, 120mm (periscope telephoto), 1/1.4"-type, PDAF, OIS, 5x optical zoom |
| Video | — | 8K@24/30fps, 4K@24/30/60/120fps, 1080p@30/60/120/240/480/960/1920fps, gyro-EIS, OIS, HDR10+, 10-bit video |
Selfie Camera
| Apple iPhone 18 Pro | Xiaomi 15 Ultra |
|---|
| Resolution | 12MP | — |
| Features | TrueDepth camera, Autofocus, Cinematic mode | HDR, panorama |
| Single | — | 32 MP, f/2.0, 22mm (wide) |
| Video | — | 4K@30/60fps, 1080p@30/60fps, gyro-EIS |
Battery
| Apple iPhone 18 Pro | Xiaomi 15 Ultra |
|---|
| Type | Li-Ion | Li-Po 5410 mAh, non-removable |
| Capacity | Approximately 4288 mAh (rumored) | — |
| Charging | Fast charging, MagSafe wireless charging, Qi2 wireless charging | 90W wired, PD3.0, QC4, 100% in 35 min (approx.); 80W wireless, 100% in 49 min (approx.); 10W reverse wireless |
| Life | Longer battery life | — |
Body
| Apple iPhone 18 Pro | Xiaomi 15 Ultra |
|---|
| Dimensions | Approximately 150.0 x 71.9 x 8.75 mm (5.91 x 2.83 x 0.34 in) | 161.3 x 75.3 x 9.4 mm |
| Weight | Approximately 206 g (7.27 oz) | 226g (Glass fiber/Vegan leather), 229g (Silver Chrome) |
| Build | Titanium frame, Ceramic Shield front, textured matte glass back | Glass front (Xiaomi Shield Glass 2.0), aluminum frame, glass fiber or vegan leather back |
| SIM | Dual SIM (Nano-SIM and eSIM) or Dual eSIM | Dual SIM (Nano-SIM, dual stand-by) or eSIM |
| Water & Dust Resistance | IP68 (maximum depth of 6 meters for up to 30 minutes) | — |
| IP Rating | — | IP68 dust/water resistant (up to 1.5m for 30 min) |
Comms
| Apple iPhone 18 Pro | Xiaomi 15 Ultra |
|---|
| WLAN | Wi-Fi 7 (802.11be) with 2x2 MIMO | Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct |
| Bluetooth | 5.3 | 5.4, A2DP, LE, aptX HD, aptX Adaptive |
| GPS | Yes, with A-GPS, GLONASS, GALILEO, BDS, QZSS | — |
| NFC | Yes, with reader mode | Yes |
| USB | USB-C | USB Type-C 3.2, OTG |
| Positioning | — | GPS (L1+L5), GLONASS (G1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5) |
| Infrared port | — | Yes |
Launch
| Apple iPhone 18 Pro | Xiaomi 15 Ultra |
|---|
| Announced | 2026, September 9 | 2025, February 27 |
| Status | Expected. On sale September 18, 2026. | Available |
Frequently asked questions
Which has the better battery, Apple iPhone 18 Pro or Xiaomi 15 Ultra?
Xiaomi 15 Ultra — 4,288 mAh for the Apple iPhone 18 Pro versus 5,410 mAh for the Xiaomi 15 Ultra.
Which is lighter, Apple iPhone 18 Pro or Xiaomi 15 Ultra?
Apple iPhone 18 Pro — 206 g for the Apple iPhone 18 Pro versus 226 g for the Xiaomi 15 Ultra.
Which is newer, Apple iPhone 18 Pro or Xiaomi 15 Ultra?
Apple iPhone 18 Pro — Sep 2026 for the Apple iPhone 18 Pro versus Feb 2025 for the Xiaomi 15 Ultra.
Is the Apple iPhone 18 Pro or the Xiaomi 15 Ultra rated higher?
We rate the Apple iPhone 18 Pro 9/10 and the Xiaomi 15 Ultra 9/10.
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