Xiaomi Mi 8 (128GB) vs Xiaomi Redmi S2 (32GB)
Side by side comparison between Xiaomi Mi 8 vs Xiaomi Redmi S2 phones, differences, pros, cons and full specifications. What's the better?
,
6.21"
AMOLED
AMOLED
1080x2248
12
MP
MP
20mp
6GB
RAM
RAM
Octa-core
3400
mAh
mAh
(Non removable)
vs
5.99"
IPS
IPS
720x1440
12
MP
MP
16mp
3GB
RAM
RAM
Octa-core
3080
mAh
mAh
(Non removable)
What's the better phone? Xiaomi Mi 8 (128GB)
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!
28 Advantages 
5 Advantages | 22 Common items in both devices |
| 16 million |
| PDAF: phase detection autofocus |
| HDR photo on both cameras |
| 4G LTE-A |
| Capacitive |
| Multitouch |
| Accelerometer |
| +15 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 8 (128GB) | Redmi S2 (32GB) | |
| Model | Xiaomi Mi 8 (128GB) | Redmi S2 (32GB) |
| Other model names | 小米8, Xiaomi Mi8 6GB RAM, Xiaomi Dipper | 红米自拍手机S2, Xiaomi S2, Xiaomi Ysl |
| Country or region available |     (Global, International), China, Hong Kong, Taiwan | (Global, International), China |
| Brand | Xiaomi | Xiaomi |
| Release date | 6/1/2018 | 5/1/2018 |
| Depth | 7.6 millimeters (0.3 inches) | 8.1 millimeters (0.32 inches) |
| Size (width x height) | 74.8 x 154.9 millimeters (2.94 x 6.1 in) | 77.26 x 160.73 millimeters (3.04 x 6.33 in) |
| Weight | 175 grams (6.13 ounces) | 170 grams (5.95 ounces) |
| Build, materials | Aluminum frame, glass front/back | Plastic body, glass front |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Xiaomi Mi 8 (128GB) | Redmi S2 (32GB) | |
| Display type | Super AMOLED | TFT IPS LCD |
| Screen size | 6.21" inches | 5.99" inches |
| Screen-to-body ratio | ~83.8% (screen-to-body ratio) | ~74.6% (screen-to-body ratio) |
| Display resolution | 1080x2248 pixels | 720x1440 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 402 PPI | 269 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 5 | Not supported |
| Refresh rate | 60Hz | feature not registered |
| Display features | 600nits[typ] HDR10 | feature not registered |
🤖 Operating System | ||
| Xiaomi Mi 8 (128GB) | Redmi S2 (32GB) | |
| System version | Android 8.1 Oreo | Android 7.1.2 Nougat |
| Firmware update | Android 9.0 Pie | Android 8.1 Oreo |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Xiaomi Mi 8 (128GB) | Redmi S2 (32GB) | |
| Chipset | 64bit: Qualcomm Snapdragon 845 MSM8998 (10nm) | 64bit: Qualcomm Snapdragon 625 MSM8953 (14nm) |
| CPU | Octa-core, 2 processors: 4x 2.8GHz Kryo 385 Gold (Quad-core) 4x 1.8GHz Kryo 385 Silver (Quad-core) | Octa-core, 1 processor: 8x 2GHz ARM Cortex-A53 (Octa-core) |
| GPU graphical controller | Qualcomm Adreno 630 710Mhz | Qualcomm Adreno 506 650Mhz |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Xiaomi Mi 8 (128GB) | Redmi S2 (32GB) | |
| RAM memory | 6GB LPDDR4X | 3GB LPDDR3 |
| Internal storage | 128GB (110GB available) UFS 2.1 | 32GB (21GB available) eMMC 5.1 |
| External storage | Not supported | Until 256GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Xiaomi Mi 8 (128GB) | Redmi S2 (32GB) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 1024/150 Mbps | 300/50 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G, 4G |
| 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, GSM 850/900/1800/1900 | CDMA 800 (China), GSM 850/900/1800/1900 |
| Primary 3G network | CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1700/1900/2100 | M1803E6G Global version: UMTS 850/900/1900/2100 M1803E6E, M1803E6C, M1803E6T versions: CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1900/2100 |
| Primary 4G network | LTE Cat16 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20) TD-LTE (34, 38, 39, 40, 41) VoLTE | LTE Cat6 M1803E6G Global version: LTE (Bands 1,3,4,5,7,8,20) TD-LTE (Bands 38,40) M1803E6E, M1803E6C, M1803E6T versions: LTE (Bands 1,3,5,7,8) TD-LTE (Bands 34,38,39,40,41) |
| Primary 5G network | Not supported | Not supported |
| 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 |
| Secondary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | GPRS, EDGE | GPRS, EDGE |
📷 Camera | ||
| Xiaomi Mi 8 (128GB) | Redmi S2 (32GB) | |
| Back camera (main camera) | (dual camera) 12 megapixels 12MP telephoto f/2.456mm1/3.4"1.0µmAF2x-optical-zoom | (dual camera) 12 megapixels 5MP depth |
| Main camera resolution | 4000x3000 pixels | 4000x3000 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | Dual-LED flash | LED flash on both cameras |
| Focal aperture | f/1.8 (aperture) | f/2.2 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | 1/2.55" inches | feature not registered |
| Pixel size | 1.4µm pixel | 1.25µm pixel |
| Autofocus | PDAF: phase detection autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | OIS (4-axis): Optical stabilization | EIS: Digital stabilization |
| Zoom | Digital and optical zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Not supported | Not supported |
| HDR | HDR photo on both cameras | HDR photo on both cameras |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Xiaomi Mi 8 (128GB) | Redmi S2 (32GB) | |
| Front camera (secondary) | 20 megapixels | 16 megapixels |
| Front camera resolution | 5184x3840 pixels | 4608x3456 pixels |
| Video recording (secondary) | Full HD (1920x1080) | HD (1280x720) |
| Front flash | Not supported | LED |
| Focal aperture | f/2.0 (aperture) | f/2.0 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | 1/3" inches | feature not registered |
| Pixel size | 1.8µm pixel | feature not registered |
🔉 Sound and multimedia | ||
| Xiaomi Mi 8 (128GB) | Redmi S2 (32GB) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | Not supported | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Xiaomi Mi 8 (128GB) | Redmi S2 (32GB) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | MicroUSB 2.0, USB OTG On-The-Go |
| Audio output | Type-C jack with 3.5mm jack adapter | 3.5mm jack |
| TV output | USB Type-C (reversible) | Not supported |
| Bluetooth | 5.0 + A2DP/LE | 4.2 + A2DP |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot |
| DLNA | Supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS | A-GPS, GeoTagging, GLONASS, BeiDou |
| NFC | Supported | Not supported |
| Infrared port | Not supported | Supported |
🧭 Sensors | ||
| Xiaomi Mi 8 (128GB) | Redmi S2 (32GB) | |
| Sensors | Accelerometer Ambient light sensor Barometer Compass Face unlock 2D Fingerprint sensor (rear-mounted) Gyroscope Hall effect Proximity sensor | Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Xiaomi Mi 8 (128GB) | Redmi S2 (32GB) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 3400 mAh | 3080 mAh |
| Charger, watts | 18W Wired fast charging Quick Charge 4+ | 10W (5V/2A) Wired charging |
| Inductive / wireless charging | Not supported | feature not registered |
| Talk time autonomy | feature not registered | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Xiaomi Mi 8 (128GB) | Redmi S2 (32GB) | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder |
| 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, Blue, White, Gold • MIUI 9.5 • Always-On Display • WiFi display | • Colors: Gray, Gold, Rose Gold, Blue, Black • MIUI 10 • 18:9 screen |
☢️ Radiation rate | ||
| Xiaomi Mi 8 (128GB) | Redmi S2 (32GB) | |
| 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 |