Compare Phones.
Compare features, prices and ratings to find the perfect phone for you.
Our Verdict
Analysis
Xiaomi 15 Ultra has the larger battery; Samsung Galaxy S25 Ultra has the bigger display; Xiaomi 15 Ultra has the more RAM; Xiaomi 15 Ultra has the cheaper price.
Overall Winner
Xiaomi 15 Ultra
Display Winner
Samsung Galaxy S25 Ultra
Performance Winner
Xiaomi 15 Ultra
Camera Winner
Tie
Battery Winner
Xiaomi 15 Ultra
Value Winner
Xiaomi 15 Ultra
Specifications Comparison
| Feature | Samsung Galaxy S25 Ultra | Xiaomi 15 Ultra |
|---|---|---|
| Display size (in) | 6.90 | 6.73 |
| Battery (mAh) | 5000 | 5410 |
| Charging (W) | 45 | 90 |
| RAM (GB) | 12 | 16 |
| Storage (GB) | 256 | 512 |
| Main camera (MP) | 200.00 | 50.00 |
| Selfie (MP) | 12.00 | 32.00 |
| Weight (g) | 218 | 226 |
| Thickness (mm) | 8.20 | 9.35 |
| OS | Android 15 | Android 15, HyperOS 2 |
Pros & Cons
Samsung Galaxy S25 Ultra
- Brilliant display
- Versatile camera system
- Long update commitment
- Productivity features
- Premium pricing
- Bulky design
- Slow charging vs Chinese rivals
Xiaomi 15 Ultra
- Outstanding camera versatility
- Fast wired and wireless charging
- Bright display
- Heavy
- Software still polishing animations
- Limited availability in some regions
Every Spec, Side by Side
Specification
Samsung
Samsung Galaxy S25 Ultra
Xiaomi
Xiaomi 15 Ultra
Battery 3 specs
Type
Li-Ion 5000 mAh
Market-dependent versions:· Si/C Li-Ion 5410 mAh - Global· Si/C Li-Ion 6000 mAh - China
Capacity
5000 mAh
5410 mAh
Charging
45W wired
90W wired, 80W wireless
Body 5 specs
Build
Glass front (Corning Gorilla Armor 2), glass back (Gorilla Glass Victus 2), titanium frame (grade 5)
Glass front, glass-fiber reinforced plastic back or silicone polymer back (eco leather), aluminum frame
SIM
· Nano-SIM + Nano-SIM + eSIM + eSIM (max 2 at a time) - INT· Nano-SIM + eSIM + eSIM (max 2 at a time) - USA· Nano-SIM + Nano-SIM - CN
· Nano-SIM + Nano-SIM· Nano-SIM + Nano-SIM + eSIM + eSIM (max 2 at a time)
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min)
Stylus
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min)
Aerospace-grade glass fiber
Weight
218 g
226 g
Dimensions
162.8 x 77.6 x 8.2 mm
161.3 x 75.3 x 9.35 mm
Connectivity 8 specs
WLAN
Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct
Wi-Fi 802.11 a/b/g/n/ac/6e/7, dual-band or tri-band, Wi-Fi Direct
Bluetooth
5.4, A2DP, LE
6.0, A2DP, LE, aptX HD, aptX Adaptive, LHDC 5
Positioning
GPS, GLONASS, BDS, GALILEO, QZSS
GPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5), GLONASS
Radio
No
No
USB
USB Type-C 3.2, DisplayPort 1.2, OTG
USB Type-C 3.2 Gen 2, DisplayPort, OTG
5G
Yes
Yes
NFC
Yes
Yes
Infrared port
—
Yes
Display 5 specs
Type
Dynamic AMOLED 2X
LTPO AMOLED
Protection
Corning Gorilla Armor 2, Mohs level 6
Xiaomi Shield Glass 2.0, Mohs level 6
DX anti-reflective coating
—
Size
6.9 inches
6.73 inches
Resolution
1440 x 3120 pixels
1440 x 3200 pixels
Eu Label 4 specs
Energy
Class B
Class A
Battery
44:54h endurance, 2000 cycles
58:58h endurance, 1000 cycles
Free fall
Class A (270 falls)
Class C (90 falls)
Repairability
Class C
Class C
Features 2 specs
Sensors
Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
Fingerprint (under display, ultrasonic), accelerometer, proximity, gyro, compass, barometer
Samsung DeX, Samsung Wireless DeX (desktop experience support)
Ultra Wideband (UWB) support
Two-way satellite communication (China model only)
Launch 2 specs
Announced
2025, January 22
2025, February 27
Status
Available. Released 2025, February 03
Available. Released 2025, February 27
Main Camera 3 specs
Features
Laser AF, Best Face, LED flash, auto-HDR, panorama
Laser AF, color spectrum sensor, Leica lenses, Dual-LED flash, HDR, panorama, 67mm filter ring holder (optional)
Video
8K@24/30fps, 4K@30/60/120fps, 1080p@30/60/120/240fps, 10-bit HDR, HDR10+, stereo sound rec., gyro-EIS
8K@30fps, 4K@30/60/120fps, 1080p@30/60/120/240/480/960/1920fps, gyro-EIS, Dolby Vision HDR 10-bit rec. (4K@60fps, 1080p)
Quad
200 MP + 50 MP + 50 MP + 10 MP
50 MP + 50 MP + 200 MP + 50 MP
Memory 5 specs
Card slot
No
No
Internal
256GB 12GB RAM, 512GB 12GB RAM, 1TB 12GB RAM, 1TB 16GB RAM
256GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM
UFS 4.0
UFS 4.1
RAM
12GB
16GB
Storage
256GB
512GB
Misc 5 specs
Colors
Titanium Silver Blue, Titanium Black, Titanium White Silver, Titanium Gray, Titanium Jade Green, Titanium Jet Black, Titanium Pink Gold
Black, White, Silver Chrome, Green
Models
SM-S938B, SM-S938B/DS, SM-S938U, SM-S938U1, SM-S938W, SM-S938N, SM-S9380, SM-S938E, SM-S938E/DS
25010PN30G
SAR
1.26 W/kg (head) 0.64 W/kg (body)
—
SAR EU
1.25 W/kg (head) 1.42 W/kg (body)
1.00 W/kg (head) 1.00 W/kg (body)
Price
$ 806.08 / C$ 1,149.00 / £ 689.99 / € 840.00 / ₹ 99,990
$ 693.75 / £ 1,295.00 / € 812.34
Network 7 specs
Technology
GSM / CDMA / HSPA / EVDO / LTE / 5G
GSM / HSPA / LTE / 5G
2G bands
GSM 850 / 900 / 1800 / 1900
GSM 850 / 900 / 1800 / 1900
1, 2, 5, 7, 25, 28, 41, 66, 71, 77, 78, 257, 258, 260, 261 SA/NSA/Sub6/mmWave - USA unlocked
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 - China
3G bands
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - International
1, 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
5G bands
1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 38, 40, 41, 66, 75, 77, 78 SA/NSA/Sub6 - International
1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 38, 40, 41, 48, 66, 71, 75, 77, 78, 79 SA/NSA - International
Speed
HSPA, LTE (CA), 5G
HSPA, LTE, 5G
Our Tests 4 specs
Performance
AnTuTu: 2207809 (v10)
GeekBench: 9846 (v6)
3DMark: 6687 (Wild Life Extreme)
—
Display
1417 nits max brightness (measured)
—
Loudspeaker
-24.6 LUFS (Very good)
-24.1 LUFS (Very good)
Battery
Active use score 14:49h
Active use score 16:13h
Platform 4 specs
CPU
Octa-core (2x4.47 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M)
Octa-core (2x4.32 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M)
GPU
Adreno 830 (1200 MHz)
Adreno 830
OS
Android 15
Android 15, HyperOS 2
Chipset
Snapdragon 8 Elite
Snapdragon 8 Elite
Selfie Camera 3 specs
Features
HDR, HDR10+
HDR, panorama
Video
4K@30/60fps, 1080p@30fps
4K@30/60fps, 1080p@30/60fps, gyro-EIS
Single
12 MP
32 MP
Sound 3 specs
Loudspeaker
Yes, with stereo speakers
Yes, with stereo speakers
3.5mm jack
No
No
High-bitrate audio support
24-bit/192kHz Hi-Res & Hi-Res Wireless audio
Qualcomm XPAN (24-bit/96kHz audio)
Similar Comparisons
Common Questions
Which phone is the best in this comparison?
Xiaomi 15 Ultra has the larger battery; Samsung Galaxy S25 Ultra has the bigger display; Xiaomi 15 Ultra has the more RAM; Xiaomi 15 Ultra has the cheaper price.
How are the comparison winners decided?
We compare measurable specs (display size, battery capacity, RAM, charging, weight) and price (USD). When two phones tie or data is missing we mark the category "Depends".
Which is more affordable?
The cheaper option is shown as the value winner above. Prices are USD and may vary by region or retailer.