OnePlus 6T (128GB/8GB) vs Xiaomi Mi 9 (128GB/8GB)
Side by side comparison between OnePlus 6T vs Xiaomi Mi 9 phones, differences, pros, cons and full specifications. What's the better?
,
6.41"
AMOLED
AMOLED
1080x2340
16
MP
MP
16mp
8GB
RAM
RAM
Octa-core
3700
mAh
mAh
(Non removable)
vs
6.39"
AMOLED
AMOLED
1080x2340
48
MP
MP
20mp
8GB
RAM
RAM
Octa-core
3300
mAh
mAh
(Non removable)
What's the better phone? Xiaomi Mi 9 (128GB/8GB)
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!
4 Advantages 
9 Advantages | 35 Common items in both devices |
| 8GB LPDDR4X |
| 128GB (110GB available) / 128GB (109GB available) |
| UFS 2.1 |
| Aluminum frame, glass front/back |
| Optic AMOLED / Super AMOLED |
| 16 million |
| 1080x2340 pixels |
| +28 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 | ||
| OnePlus 6T (128GB/8GB) | Xiaomi Mi 9 (128GB/8GB) | |
| Model | OnePlus 6T (128GB/8GB) | Xiaomi Mi 9 (128GB/8GB) |
| Other model names | OnePlus 6T A6013 (128GB + 8GB RAM), One Plus 6T | 小米9, Xiaomi Mi9 (8GB RAM), M1902F1A, M1902F1G, M1902F1T |
| Country or region available |      China, USA, (Europe), India, (Global, International) | China |
| Brand | OnePlus | Xiaomi |
| Release date | 11/1/2018 | 3/1/2019 |
| Depth | 8.2 millimeters (0.32 inches) | 7.61 millimeters (0.3 inches) |
| Size (width x height) | 74.8 x 157.5 millimeters (2.94 x 6.2 in) | 74.67 x 157.5 millimeters (2.94 x 6.2 in) |
| Weight | 185 grams (6.48 ounces) | 173 grams (6.06 ounces) |
| Build, materials | Aluminum frame, glass front/back | Aluminum frame, glass front/back |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| OnePlus 6T (128GB/8GB) | Xiaomi Mi 9 (128GB/8GB) | |
| Display type | Optic AMOLED | Super AMOLED |
| Screen size | 6.41" inches | 6.39" inches |
| Screen-to-body ratio | ~85.6% (screen-to-body ratio) | ~85.2% (screen-to-body ratio) |
| Display resolution | 1080x2340 pixels | 1080x2340 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 402 PPI | 403 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 6 | Gorilla Glass 6 |
| Refresh rate | feature not registered | feature not registered |
| Display features | feature not registered | feature not registered |
🤖 Operating System | ||
| OnePlus 6T (128GB/8GB) | Xiaomi Mi 9 (128GB/8GB) | |
| System version | Android 9.0 Pie | Android 9.0 Pie |
| Firmware update | Android 10 | Android 10 |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| OnePlus 6T (128GB/8GB) | Xiaomi Mi 9 (128GB/8GB) | |
| Chipset | 64bit: Qualcomm Snapdragon 845 MSM8998 (10nm) | 64bit: Qualcomm Snapdragon 855 (SM8150) (7nm) |
| CPU | Octa-core, 2 processors: 4x 2.8GHz Kryo 385 Gold (Quad-core) 4x 1.7GHz Kryo 385 Silver (Quad-core) | Octa-core, 3 processors: 1x 2.84GHz Kryo 485 (Single-core) 3x 2.42GHz Kryo 485 (Triple-core) 4x 1.78GHz Kryo 485 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 630 710Mhz | Qualcomm Adreno 640 (585MHz) |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| OnePlus 6T (128GB/8GB) | Xiaomi Mi 9 (128GB/8GB) | |
| RAM memory | 8GB LPDDR4X | 8GB LPDDR4X |
| Internal storage | 128GB (110GB available) UFS 2.1 | 128GB (109GB available) UFS 2.1 |
| External storage | Not supported | Not supported |
📶 Mobile networks | ||
| OnePlus 6T (128GB/8GB) | Xiaomi Mi 9 (128GB/8GB) | |
| 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) |
| Maximum Download / Upload | 1024/150 Mbps | 1024/150 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, GSM 850/900/1800/1900 | CDMA 800, 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 850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat16 Europe, North America version: LTE (Bands 1,2,3,4,5,7,12,13,17,18,19,20,25,26,28,29,30,32,66,71) TD-LTE (Bands 34,38,39,40,41,46) India, China version: LTE (Bands 1,2,3,4,5,7,12,13,17,18,19,20,25,26,28,29) TD-LTE (Bands 34,38,39,40,41) | LTE Cat16/13 VoLTE Global version: LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 20, 28) TD-LTE (Bands 38, 39, 40) China version: LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 17) 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 | ||
| OnePlus 6T (128GB/8GB) | Xiaomi Mi 9 (128GB/8GB) | |
| Back camera (main camera) | (dual camera) 16 megapixels 20MP wide 16mpeffectivef/1.725mm1/2.8"1.0µmPDAF | (triple camera) 48 megapixels 16MP ultrawide f/2.213mm1/3.0"1.0µmPDAF 12MP telephoto f/2.254mm1/3.6"1.0µmPDAF2x-optical-zoom |
| Main camera resolution | 4608x3456 pixels | 8000x6000 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 60 fps | 4K UHD (3840x2160) 60 fps |
| Flash | Dual-LED flash | Dual-LED flash |
| Focal aperture | f/1.7 (aperture) | f/1.8 (aperture) |
| Focal length | 25mm lens | feature not registered |
| Sensor size | 1/2.6" inches | 1/2" inches |
| Pixel size | 1.22µm pixel | 0.8µm pixel |
| Autofocus | PDAF: phase detection autofocus | LDAF/PDAF: laser/phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | OIS: Optical stabilization | EIS: Digital stabilization |
| Zoom | Only digital zoom | Digital and optical 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 | ||
| OnePlus 6T (128GB/8GB) | Xiaomi Mi 9 (128GB/8GB) | |
| Front camera (secondary) | 16 megapixels | 20 megapixels |
| Front camera resolution | 4608x3456 pixels | 5184x3840 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.0 (aperture) | f/2.0 (aperture) |
| Focal length | 25mm lens | feature not registered |
| Sensor size | 1/3.1" inches | feature not registered |
| Pixel size | 1µm pixel | 0.9µm pixel |
🔉 Sound and multimedia | ||
| OnePlus 6T (128GB/8GB) | Xiaomi Mi 9 (128GB/8GB) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | Not supported | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, 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 | ||
| OnePlus 6T (128GB/8GB) | Xiaomi Mi 9 (128GB/8GB) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | USB 2.0 Type-C, USB OTG On-The-Go |
| Audio output | Type-C reversible connector | Type-C jack with 3.5mm jack adapter |
| TV output | Not supported | Not supported |
| 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/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Supported | Supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS |
| NFC | Supported | Supported |
| Infrared port | Not supported | Supported |
🧭 Sensors | ||
| OnePlus 6T (128GB/8GB) | Xiaomi Mi 9 (128GB/8GB) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (under display) Gyroscope Hall effect Proximity sensor | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (under display) Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| OnePlus 6T (128GB/8GB) | Xiaomi Mi 9 (128GB/8GB) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 3700 mAh | 3300 mAh |
| Charger, watts | 20W (5V/4A) Wired fast charging | 27W Wired fast charging |
| Inductive / wireless charging | feature not registered | Qi wireless charging |
| Talk time autonomy | feature not registered | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| OnePlus 6T (128GB/8GB) | Xiaomi Mi 9 (128GB/8GB) | |
| 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: Mirror Black, Midnight Black • Oxygen OS • 19.5:9 / DCI-P3 / 2.5D screen • Dash Charge • Dirac HD sound | • Colors: Piano Black, Lavender Violet, Ocean Blue • MIUI 10 • HDR10/DCI-P3 display • Sapphire glass camera cover • Quick Charge 4+ • Fast wireless charging 20W |
☢️ Radiation rate | ||
| OnePlus 6T (128GB/8GB) | Xiaomi Mi 9 (128GB/8GB) | |
| 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 |