Samsung Galaxy S25 Ultra vs Xiaomi 15 Pro
A spec-by-spec comparison of the Samsung Galaxy S25 Ultra and the Xiaomi 15 Pro, taken from their full specification sheets. Green marks the better value in each measured row.
Head to head
| Samsung Galaxy S25 Ultra | Xiaomi 15 Pro |
|---|
| Our rating | 9/10 | 9/10 |
| Battery | 5,000 mAh | 6,100 mAh |
| Wired charging | 45W | 90W |
| Storage (max) | 512 GB | 512 GB |
| Screen size | 6.9 in | 6.73 in |
| Refresh rate | 120 Hz | — |
| Main camera | 200 MP | 50 MP |
| Weight (lower is lighter) | 218 g | — |
| Released | Feb 2025 | Oct 2024 |
Summary: Samsung Galaxy S25 Ultra is ahead on screen size, main camera. Xiaomi 15 Pro is ahead on battery, wired charging.
★ Which should you buy? Samsung Galaxy S25 Ultra and Xiaomi 15 Pro are evenly matched — either is a safe buy.
Researched with AI assistance by infozme.com from manufacturer and retailer sources — see how we research & rate phones.
Display
| Samsung Galaxy S25 Ultra | Xiaomi 15 Pro |
|---|
| Type | Dynamic AMOLED 2X, 120Hz, HDR10+, 2600 nits (peak) | LTPO AMOLED |
| Size | 6.9 inches | 6.73 inches |
| Resolution | 1440 x 3120 pixels | 1440 x 3200 pixels (QHD) |
| Protection | Corning Gorilla Glass Armor (rumored) | Shatterproof glass (2024 gen) / Xiaomi Dragon Crystal Glass 2.0 / Corning Gorilla Glass Victus 2 |
| Refresh Rate | — | 120Hz |
| Brightness | — | 3200 nits (peak) |
| Features | — | Dolby Vision, HDR10+, 68B colors, 522 ppi |
Platform
| Samsung Galaxy S25 Ultra | Xiaomi 15 Pro |
|---|
| OS | Android 15, One UI 7.0 | Android 15, HyperOS 2 |
| Chipset | Qualcomm Snapdragon 8 Gen 4 for Galaxy (global) / Exynos 2500 (select regions) | Qualcomm Snapdragon 8 Elite (based on Snapdragon 8 Gen 4 architecture) |
| CPU | Octa-core (configuration varies by chipset) | Octa-core (2x4.32 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M) |
| GPU | Adreno (for Snapdragon) / Xclipse (for Exynos) | Adreno 830 |
Memory
| Samsung Galaxy S25 Ultra | Xiaomi 15 Pro |
|---|
| RAM | 12GB, 16GB | 12GB, 16GB |
| Storage | 256GB, 512GB, 1TB | — |
| Card slot | No | — |
| Internal Storage | — | 256GB, 512GB, 1TB |
| Card Slot | — | No |
Main Camera
| Samsung Galaxy S25 Ultra | Xiaomi 15 Pro |
|---|
| Quad | 200 MP, f/1.7, 23mm (wide), multi-directional PDAF, Laser AF, OIS; 50 MP, f/3.4, 115mm (periscope telephoto), 5x optical zoom, PDAF, OIS; 10 MP, f/2.4, 69mm (telephoto), 3x optical zoom, PDAF, OIS; 50 MP, f/1.9, 13mm, 120˚ (ultrawide), Dual Pixel PDAF | — |
| Features | LED flash, auto-HDR, panorama | Leica optics, OIS (main sensor), 5x optical zoom (periscope telephoto) |
| Video | 8K@24/30fps, 4K@30/60/120fps, 1080p@30/60/240fps, 1080p@960fps, HDR10+, stereo sound rec., gyro-EIS | 8K@24/30fps (HDR), 4K@24/30/60fps (HDR10+, 10-bit Dolby Vision HDR, 10-bit LOG), 1080p@30/60/120/240/960fps, 720p@1920fps |
| Triple | — | 50 MP (wide) + 50 MP (periscope telephoto) + 50 MP (ultrawide) |
Selfie Camera
| Samsung Galaxy S25 Ultra | Xiaomi 15 Pro |
|---|
| Single | 12 MP, f/2.2, 26mm (wide), Dual Pixel PDAF | 32 MP (wide) |
| Features | Dual video call, Auto-HDR, HDR10+ | — |
| Video | 4K@30/60fps, 1080p@30fps | — |
Battery
| Samsung Galaxy S25 Ultra | Xiaomi 15 Pro |
|---|
| Type | Li-Ion 5000 mAh, non-removable | Si/C 6100 mAh, non-removable |
| Charging | 45W wired, PD3.0, 15W wireless (Qi/PMA), 4.5W reverse wireless | 90W wired, PD3.0, QC3+; 50W wireless; 10W reverse wireless |
Body
| Samsung Galaxy S25 Ultra | Xiaomi 15 Pro |
|---|
| Dimensions | Approximately 162.3 x 79 x 8.2 mm (slightly smaller than S24 Ultra) | 161.3 x 75.3 x 8.4 mm |
| Weight | 218g - 219g | 213 grams |
| Build | Glass front (Gorilla Glass Armor), glass back, titanium frame | Front: Shatterproof glass (2024 gen) / Xiaomi Dragon Crystal Glass 2.0 / Corning Gorilla Glass Victus 2, Aluminium Frame, Ceramic camera module, Titanium Edition available |
| SIM | Dual SIM (2 Nano-SIMs and eSIM, dual stand-by) | — |
| Stylus | S Pen support | — |
| Water & Dust Resistance | — | IP68 dust/water resistant (up to 1.5m for 30 min) |
Comms
| Samsung Galaxy S25 Ultra | Xiaomi 15 Pro |
|---|
| WLAN | Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct | Wi-Fi 7 (802.11 a/b/g/n/ac/ax) |
| Bluetooth | 5.4, A2DP, LE | 5.4 |
| Positioning | GPS, GLONASS, BDS, GALILEO | GPS (L1+L5), GLONASS (G1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5) |
| NFC | Yes | Yes |
| Radio | No | — |
| USB | USB Type-C 3.2, OTG | USB Type-C 3.2 Gen2, OTG |
| Infrared Port | — | Yes |
Launch
| Samsung Galaxy S25 Ultra | Xiaomi 15 Pro |
|---|
| Announced | January 2025 | October 2024 |
| Status | Available | Available |
Frequently asked questions
Which has the better battery, Samsung Galaxy S25 Ultra or Xiaomi 15 Pro?
Xiaomi 15 Pro — 5,000 mAh for the Samsung Galaxy S25 Ultra versus 6,100 mAh for the Xiaomi 15 Pro.
Which is newer, Samsung Galaxy S25 Ultra or Xiaomi 15 Pro?
Samsung Galaxy S25 Ultra — Feb 2025 for the Samsung Galaxy S25 Ultra versus Oct 2024 for the Xiaomi 15 Pro.
Is the Samsung Galaxy S25 Ultra or the Xiaomi 15 Pro rated higher?
We rate the Samsung Galaxy S25 Ultra 9/10 and the Xiaomi 15 Pro 9/10.
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