Xiaomi Mi Mix 2S (256GB) vs Samsung Galaxy S25 Ultra (SM-S938B/DS 256GB)
Side by side comparison between Xiaomi Mi Mix 2S vs Samsung Galaxy S25 Ultra phones, differences, pros, cons and full specifications. What's the better?
,
5.99"
IPS
IPS
1080x2160
12
MP
MP
5mp
8GB
RAM
RAM
Octa-core
3400
mAh
mAh
(Non removable)
vs
6.9"
AMOLED
AMOLED
1440x3120
200
MP
MP
12mp
12GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
What's the better phone? Samsung Galaxy S25 Ultra (SM-S938B/DS 256GB)
The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!
3 Advantages 
27 Advantages | 27 Common items in both devices |
| 256GB (243GB available) / 256GB (223GB available) |
| 16 million |
| Digital and optical zoom |
| PDAF: phase detection autofocus / PDAF: phase detection autofocus on both cameras |
| OIS (4-axis): Optical stabilization / OIS: Optical stabilization |
| HDR photo on both cameras / HDR photo/video on both cameras |
| Capacitive |
| +20 specs and more in the table below |
Check the comparison table below for more items that are not evaluated in comparison score above.
Highlight differences Clear highlight📱 Model features | ||
| Xiaomi Mi Mix 2S (256GB) | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| Model | Xiaomi Mi Mix 2S (256GB) | Galaxy S25 Ultra (SM-S938B/DS 256GB) |
| Other model names | 小米MIX 2S, Xiaomi Mix 2S (256GB + 8GB RAM), Xiaomi Polaris | Galaxy S25 Ultra SM-S938B/Dual-SIM |
| Country or region available |  China |  (Global, International) |
| Brand | Xiaomi | Samsung |
| Release date | 4/3/2018 | 2/3/2025, Announced: 2/22/2025 |
| Depth | 8.1 millimeters (0.32 inches) | 8.2 millimeters (0.32 inches) |
| Size (width x height) | 74.9 x 150.86 millimeters (2.95 x 5.94 in) | 77.6 x 162.8 millimeters (3.06 x 6.41 in) |
| Weight | 189 grams (6.62 ounces) | 218 grams (7.63 ounces) |
| Build, materials | Aluminum body, glass front, ceramic back | Titanium frame, glass front and back Back: Gorilla Armor 2 |
| Protection against water and others | Not supported | IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant |
📲 Display | ||
| Xiaomi Mi Mix 2S (256GB) | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| Display type | TFT IPS LCD | LTPO AMOLED |
| Screen size | 5.99" inches | 6.9" inches |
| Screen-to-body ratio | ~81.9% (screen-to-body ratio) | ~92.5% (screen-to-body ratio) |
| Display resolution | 1080x2160 pixels | 1440x3120 pixels (19.5:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch 10-points |
| Pixel density (dot pitch) | 403 PPI | 498 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 4 | Gorilla Armor 2 |
| Refresh rate | feature not registered | 120Hz |
| Display features | feature not registered | 2600nits[peak] HDR10+ Always-On Display |
🤖 Operating System | ||
| Xiaomi Mi Mix 2S (256GB) | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| System version | Android 8.0 Oreo | Android 15 |
| Firmware update | Android 10 | feature not registered |
| User Interface | feature not registered | One UI 7.0 |
⚙️ Processor | ||
| Xiaomi Mi Mix 2S (256GB) | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| Chipset | 64bit: Qualcomm Snapdragon 845 MSM8998 (10nm) | 64bit: Qualcomm Snapdragon 8 Elite (SM8750-AB) (3nm) |
| CPU | Octa-core, 2 processors: 4x 2.8GHz Kryo 385 Gold (Quad-core) 4x 1.8GHz Kryo 385 Silver (Quad-core) | Octa-core, 2 processors: 2x 4.47GHz Oryon V2 Phoenix L (Dual-core) 6x 3.53GHz Oryon V2 Phoenix M (Hexa-core) |
| GPU graphical controller | Qualcomm Adreno 630 710Mhz | Qualcomm Adreno 830 (1100MHz) |
| Performance (benchmark) | feature not registered | AnTuTu: 2207809 (v10) Geekbench: 9846 (v6) |
💽 Memory and storage | ||
| Xiaomi Mi Mix 2S (256GB) | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| RAM memory | 8GB LPDDR4X | 12GB LPDDR5X |
| Internal storage | 256GB (243GB available) UFS 2.1 | 256GB (223GB available) UFS 4.0 |
| External storage | Not supported | Not supported |
📶 Mobile networks | ||
| Xiaomi Mi Mix 2S (256GB) | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card | Dual-SIM Standby - Call active on one sim card |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) + e-SIM |
| Maximum Download / Upload | 1200/100 Mbps | 5000/1024 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G, 4G, 5G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Quad-Band 850/900/1800/1900 | Quad-Band 850/900/1800/1900 |
| Primary 2G network | CDMA 800/1900/2100, GSM 850/900/1800/1900 | CDMA 800/1900, GSM 850/900/1800/1900 |
| Primary 3G network | CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 800/850/900/1700/1800/1900/2100 | CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS |
| Primary 4G network | LTE Cat18 (Bands 1,2,3,4,5,7,8,12,13,17,18,19,20,25,26,27,28,29,30) TD-LTE (Bands 34,38,39,40,41) | LTE Cat24 () TD-LTE () VoLTE |
| Primary 5G network | Not supported | SA/NSA/Sub6 () |
| Primary data network | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 |
| Secondary 2G network | GSM 850/900/1800/1900 | CDMA 800/1900, GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS |
| Secondary 4G network | Not supported | LTE Cat24 () TD-LTE () VoLTE |
| Secondary data network | GPRS, EDGE | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 |
📷 Camera | ||
| Xiaomi Mi Mix 2S (256GB) | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| Back camera (main camera) | (dual camera) 12 megapixels 12MP f/2.41/3.4"1µmAF | (quad camera) 200 megapixels 10MP telephoto f/2.467mm1/3.52"1.12µmPDAFOIS3x-optical-zoom 50MP periscope telephoto f/3.4111mm1/2.52"0.7µmPDAFOIS5x-optical-zoom 50MP ultrawide f/1.9120°0.7µmPDAFSuper-Steady |
| Main camera resolution | 4000x3000 pixels | 20000x10000 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | 8K UHD (7680x4320) 30 fps |
| Flash | Dual-LED flash | LED flash |
| Focal aperture | f/1.8 (aperture) | f/1.7 (aperture) |
| Focal length | feature not registered | 24mm (lens) |
| Sensor size | 1/2.55" inches | 1/1.3" inches |
| Pixel size | 1.4µm pixel | 0.6µm pixel |
| Autofocus | PDAF: phase detection autofocus | PDAF: phase detection autofocus on both cameras |
| Touch focus | Supported | Supported |
| Image stabilization | OIS (4-axis): Optical stabilization | OIS: Optical stabilization |
| Zoom | Digital and optical zoom | Digital and optical zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Not supported | Supported |
| HDR | HDR photo on both cameras | HDR photo/video on both cameras |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Xiaomi Mi Mix 2S (256GB) | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| Front camera (secondary) | 5 megapixels | 12 megapixels |
| Front camera resolution | 2560x1920 pixels | 4000x3000 pixels |
| Video recording (secondary) | Full HD (1920x1080) | 4K UHD (3840x2160) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.0 (aperture) | f/2.2 (aperture) |
| Focal length | feature not registered | 26mm (lens) |
| Sensor size | feature not registered | 1/3.2" inches |
| Pixel size | 1.4µm pixel | 1.12µm pixel |
🔉 Sound and multimedia | ||
| Xiaomi Mi Mix 2S (256GB) | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| Loudspeaker | Supported | Stereo sound 32-bit/384kHz Tuned by AKG |
| Active noise cancellation | 2 microphones or more | 3 microphones |
| Radio | Not supported | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, OGG, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Xiaomi Mi Mix 2S (256GB) | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| USB | USB 2.0 Type-C reversible connector | USB 3.2 Type-C, USB OTG On-The-Go |
| Audio output | Type-C reversible connector | Type-C reversible connector |
| TV output | Not supported | USB Type-C (reversible) |
| Bluetooth | 5.0 + A2DP/LE | 5.4 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 802.11 a/b/g/n/ac/ax/be [wifi7/6E/6] (2.4GHz, 5GHz, 6GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Not supported | Supported |
| GPS | A-GPS, GeoTagging, GLONASS, BeiDou | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS |
| NFC | Supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Xiaomi Mi Mix 2S (256GB) | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| Sensors | Accelerometer Ambient light sensor Barometer Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Hall effect Proximity sensor | Accelerometer Ambient light sensor Barometer Compass Face unlock Fingerprint sensor (under display) Gyroscope Hall effect Proximity sensor UWB (Ultra Wideband) |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Xiaomi Mi Mix 2S (256GB) | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| Battery type | Li-Ion: lithium-ion (Non removable) | Li-Ion: lithium-ion (Non removable) |
| Battery capacity | 3400 mAh | 5000 mAh |
| Charger, watts | 18W (9V/2A) Wired fast charging | 45W Wired fast charging Reverse charging by cable USB Power Delivery 3.0 |
| Inductive / wireless charging | Qi wireless charging | 15W Qi wireless charging 4.5W Reverse wireless charging |
| Talk time autonomy | feature not registered | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Xiaomi Mi Mix 2S (256GB) | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder, Voice commands |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (T9), MMS, E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Supported | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 | HTML, XHTML, HTML5 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Black, White • MIUI 9.5 • HDR10 display support • Quick Charge 3.0 • Type-C to 3.5 mm headphone jack adapter • VoLTE | • Samsung DeX • Samsung Wireless DeX • Stylus (S Pen) • Circle to Search |
☢️ Radiation rate | ||
| Xiaomi Mi Mix 2S (256GB) | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |