Xiaomi Mi Mix 2S (256GB) vs Xiaomi Redmi 9i (128GB)
Side by side comparison between Xiaomi Mi Mix 2S vs Xiaomi Redmi 9i 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
6.53"
IPS
IPS
720x1600
13
MP
MP
5mp
4GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
What's the better phone? Xiaomi Mi Mix 2S (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!
26 Advantages 
6 Advantages | 19 Common items in both devices |
| TFT IPS LCD |
| 16 million |
| PDAF: phase detection autofocus |
| HDR photo on both cameras |
| (front) 5MP |
| (front) Full HD (1920x1080) |
| 4G LTE-A |
| +12 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) | Redmi 9i (128GB) | |
| Model | Xiaomi Mi Mix 2S (256GB) | Redmi 9i (128GB) |
| Other model names | 小米MIX 2S, Xiaomi Mix 2S (256GB + 8GB RAM), Xiaomi Polaris | Xiaomi Redmi 9i M2006C3LII |
| Country or region available |  China |  India |
| Brand | Xiaomi | Xiaomi |
| Release date | 4/3/2018 | 9/18/2020, Announced: 9/15/2020 |
| Depth | 8.1 millimeters (0.32 inches) | 9 millimeters (0.35 inches) |
| Size (width x height) | 74.9 x 150.86 millimeters (2.95 x 5.94 in) | 77.07 x 164.9 millimeters (3.03 x 6.49 in) |
| Weight | 189 grams (6.62 ounces) | 194 grams (6.79 ounces) |
| Build, materials | Aluminum body, glass front, ceramic back | Plastic body, glass front |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Xiaomi Mi Mix 2S (256GB) | Redmi 9i (128GB) | |
| Display type | TFT IPS LCD | TFT IPS LCD |
| Screen size | 5.99" inches | 6.53" inches |
| Screen-to-body ratio | ~81.9% (screen-to-body ratio) | ~81% (screen-to-body ratio) |
| Display resolution | 1080x2160 pixels | 720x1600 pixels (20:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 403 PPI | 269 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 4 | Not supported |
| Refresh rate | feature not registered | 60Hz |
| Display features | feature not registered | 400nits[typ] |
🤖 Operating System | ||
| Xiaomi Mi Mix 2S (256GB) | Redmi 9i (128GB) | |
| System version | Android 8.0 Oreo | Android 10 |
| Firmware update | Android 10 | Android 11 |
| User Interface | feature not registered | MIUI 12.5 |
⚙️ Processor | ||
| Xiaomi Mi Mix 2S (256GB) | Redmi 9i (128GB) | |
| Chipset | 64bit: Qualcomm Snapdragon 845 MSM8998 (10nm) | 64bit: MediaTek Helio G25 (MT6762G) (12nm) |
| 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: 4x 2GHz ARM Cortex-A53 (Quad-core) 4x 1.5GHz ARM Cortex-A53 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 630 710Mhz | PowerVR GE8320 MP2 (650MHz) |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Xiaomi Mi Mix 2S (256GB) | Redmi 9i (128GB) | |
| RAM memory | 8GB LPDDR4X | 4GB LPDDR4X |
| Internal storage | 256GB (243GB available) UFS 2.1 | 128GB (103GB available) eMMC 5.1 |
| External storage | Not supported | Until 512GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Xiaomi Mi Mix 2S (256GB) | Redmi 9i (128GB) | |
| 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 | 1200/100 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 800/1900/2100, GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 800/850/900/1700/1800/1900/2100 | UMTS 850/900/1900/2100 |
| 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 Cat6 (1, 3, 5, 8) TD-LTE (40, 41) VoLTE |
| 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, UMTS, 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 | UMTS 850/900/1900/2100 |
| Secondary 4G network | Not supported | LTE Cat6 (1, 3, 5, 8) TD-LTE (40, 41) VoLTE |
| Secondary data network | GPRS, EDGE | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
📷 Camera | ||
| Xiaomi Mi Mix 2S (256GB) | Redmi 9i (128GB) | |
| Back camera (main camera) | (dual camera) 12 megapixels 12MP f/2.41/3.4"1µmAF | 13 megapixels |
| Main camera resolution | 4000x3000 pixels | 4128x3096 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | Dual-LED flash | LED flash |
| Focal aperture | f/1.8 (aperture) | f/2.2 (aperture) |
| Focal length | feature not registered | 28mm lens |
| Sensor size | 1/2.55" inches | feature not registered |
| Pixel size | 1.4µm pixel | 1µm 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 Mix 2S (256GB) | Redmi 9i (128GB) | |
| Front camera (secondary) | 5 megapixels | 5 megapixels |
| Front camera resolution | 2560x1920 pixels | 2560x1920 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.0 (aperture) | f/2.2 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | 1.4µm pixel | 1.12µm pixel |
🔉 Sound and multimedia | ||
| Xiaomi Mi Mix 2S (256GB) | Redmi 9i (128GB) | |
| Loudspeaker | Supported | Mono sound (not stereo) |
| 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 | 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) | Redmi 9i (128GB) | |
| USB | USB 2.0 Type-C reversible connector | MicroUSB 2.0, USB OTG On-The-Go |
| Audio output | Type-C reversible connector | 3.5mm jack |
| TV output | Not supported | Micro-B USB SlimPort |
| Bluetooth | 5.0 + A2DP/LE | 5.0 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 802.11 a/b/g/n [wifi4] (2.4GHz, 5GHz) WiFi Direct, hotspot |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, BeiDou | A-GPS, GeoTagging, GLONASS, BeiDou |
| NFC | Supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Xiaomi Mi Mix 2S (256GB) | Redmi 9i (128GB) | |
| Sensors | Accelerometer Ambient light sensor Barometer Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Hall effect Proximity sensor | Accelerometer Ambient light sensor Face unlock Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Xiaomi Mi Mix 2S (256GB) | Redmi 9i (128GB) | |
| Battery type | Li-Ion: lithium-ion (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 3400 mAh | 5000 mAh |
| Charger, watts | 18W (9V/2A) Wired fast charging | 10W (5V/2A) Wired charging |
| Inductive / wireless charging | Qi wireless charging | Not supported |
| Talk time autonomy | feature not registered | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Xiaomi Mi Mix 2S (256GB) | Redmi 9i (128GB) | |
| 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 | • Colors: Midnight Black, Sea Blue, Nature Green |
☢️ Radiation rate | ||
| Xiaomi Mi Mix 2S (256GB) | Redmi 9i (128GB) | |
| 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 |