HMD XR21 vs Xiaomi Mi 8 (256GB)
Side by side comparison between HMD XR21 vs Xiaomi Mi 8 phones, differences, pros, cons and full specifications. What's the better?
,
6.49"
IPS
IPS
1080x2400
64
MP
MP
16mp
6GB
RAM
RAM
Octa-core
4800
mAh
mAh
(Non removable)
vs
6.21"
AMOLED
AMOLED
1080x2248
12
MP
MP
20mp
6GB
RAM
RAM
Octa-core
3400
mAh
mAh
(Non removable)
What's the better phone? HMD XR21
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!
19 Advantages 
11 Advantages | 28 Common items in both devices |
| 6GB LPDDR4X |
| 16 million |
| Dual-LED flash |
| PDAF: phase detection autofocus |
| OIS: Optical stabilization / OIS (4-axis): Optical stabilization |
| HDR photo on both cameras |
| f/1.8 (aperture) |
| +21 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 | ||
| HMD XR21 | Xiaomi Mi 8 (256GB) | |
| Change model | ||
| Model | HMD XR21 | Xiaomi Mi 8 (256GB) |
| Other model names | HMD XR21 TA-1592 | 小米8, Xiaomi Mi8 6GB RAM, Xiaomi Dipper |
| Country or region available |  (Global, International) |   (Global, International), China, Hong Kong |
| Brand | HMD | Xiaomi |
| Release date | 5/1/2024, Announced: 5/14/2024 | 6/1/2018 |
| Depth | 10.45 millimeters (0.41 inches) | 7.6 millimeters (0.3 inches) |
| Size (width x height) | 78.58 x 168 millimeters (3.09 x 6.61 in) | 74.8 x 154.9 millimeters (2.94 x 6.1 in) |
| Weight | 231 grams (8.09 ounces) | 175 grams (6.13 ounces) |
| Build, materials | Plastic body, glass front | Aluminum frame, glass front/back |
| Protection against water and others | IP68/IP69K certified: water-resistant up to 1.5 meters for 30min, dust-resistant, plus high-pressure and steam-washable. MIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant. | Not supported |
📲 Display | ||
| HMD XR21 | Xiaomi Mi 8 (256GB) | |
| Display type | TFT IPS LCD | Super AMOLED |
| Screen size | 6.49" inches | 6.21" inches |
| Screen-to-body ratio | ~77% (screen-to-body ratio) | ~83.8% (screen-to-body ratio) |
| Display resolution | 1080x2400 pixels (20:9) | 1080x2248 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 406 PPI | 402 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass Victus | Gorilla Glass 5 |
| Refresh rate | 120Hz | 60Hz |
| Display features | 450nits[typ], 550nits[peak] | 600nits[typ] HDR10 |
🤖 Operating System | ||
| HMD XR21 | Xiaomi Mi 8 (256GB) | |
| System version | Android 13 | Android 8.1 Oreo |
| Firmware update | Android 14 | Android 9.0 Pie |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| HMD XR21 | Xiaomi Mi 8 (256GB) | |
| Chipset | 64bit: Qualcomm Snapdragon 695 (SM6375) (6nm) | 64bit: Qualcomm Snapdragon 845 MSM8998 (10nm) |
| CPU | Octa-core, 2 processors: 2x 2.2GHz Kryo 660 Gold (Dual-core) 6x 1.7GHz Kryo 660 Silver (Hexa-core) | Octa-core, 2 processors: 4x 2.8GHz Kryo 385 Gold (Quad-core) 4x 1.8GHz Kryo 385 Silver (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 619 (840MHz) | Qualcomm Adreno 630 710Mhz |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| HMD XR21 | Xiaomi Mi 8 (256GB) | |
| RAM memory | 6GB LPDDR4X | 6GB LPDDR4X |
| Internal storage | 128GB (101GB available) UFS 2.2 | 256GB (243GB available) UFS 2.1 |
| External storage | Not supported | Not supported |
📶 Mobile networks | ||
| HMD XR21 | Xiaomi Mi 8 (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) + e-SIM | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 2000/1024 Mbps | 1024/150 Mbps |
| Network technology | 2G, 3G, 4G, 5G | 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 | GSM 850/900/1800/1900 | CDMA 800, GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/900/1700/1900/2100 | CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat15 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 32, 66, 71) TD-LTE (38, 39, 40, 41, 42, 43, 48) VoLTE | LTE Cat16 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20) TD-LTE (34, 38, 39, 40, 41) VoLTE |
| Primary 5G network | SA/NSA (1, 2, 3, 5, 7, 8, 20, 25, 28, 38, 40, 41, 48, 66, 71, 77, 78, 79) | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA | 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 | UMTS 850/900/1700/1900/2100 | Not supported |
| Secondary 4G network | LTE Cat15 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 32, 66, 71) TD-LTE (38, 39, 40, 41, 42, 43, 48) VoLTE | Not supported |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA | GPRS, EDGE |
📷 Camera | ||
| HMD XR21 | Xiaomi Mi 8 (256GB) | |
| Back camera (main camera) | (dual camera) 64 megapixels 8MP ultrawide f/2.21/4"1.12µm | (dual camera) 12 megapixels 12MP telephoto f/2.456mm1/3.4"1.0µmAF2x-optical-zoom |
| Main camera resolution | 10120x6328 pixels | 4000x3000 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | 4K UHD (3840x2160) 30 fps |
| Flash | Dual-LED flash | Dual-LED flash |
| Focal aperture | f/1.8 (aperture) | f/1.8 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | 1/2" inches | 1/2.55" inches |
| Pixel size | feature not registered | 1.4µm pixel |
| Autofocus | PDAF: phase detection autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | OIS: Optical stabilization | OIS (4-axis): Optical stabilization |
| Zoom | Only digital zoom | Digital and optical zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Supported | Not supported |
| HDR | HDR photo on both cameras | HDR photo on both cameras |
| Camera extras | 1080p@30fps | feature not registered |
📸 Front camera | ||
| HMD XR21 | Xiaomi Mi 8 (256GB) | |
| 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 | feature not registered | f/2.0 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | 1/3" inches |
| Pixel size | feature not registered | 1.8µm pixel |
🔉 Sound and multimedia | ||
| HMD XR21 | Xiaomi Mi 8 (256GB) | |
| Loudspeaker | Stereo sound with dual speakers | Supported |
| Active noise cancellation | 2 microphones | 2 microphones or more |
| Radio | FM | Not supported |
| 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 | ||
| HMD XR21 | Xiaomi Mi 8 (256GB) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | USB 2.0 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | Type-C jack with 3.5mm jack adapter |
| TV output | USB Type-C (reversible) | USB Type-C (reversible) |
| Bluetooth | 5.1 + A2DP/LE | 5.0 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Not supported | Supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, NavIC | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS |
| NFC | Supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| HMD XR21 | Xiaomi Mi 8 (256GB) | |
| Sensors | Accelerometer Ambient light sensor Barometer Compass Face unlock 2D Fingerprint sensor (side-mounted) Gyroscope Proximity sensor | Accelerometer Ambient light sensor Barometer Compass Face unlock 2D Fingerprint sensor (rear-mounted) Gyroscope Hall effect Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| HMD XR21 | Xiaomi Mi 8 (256GB) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 4800 mAh | 3400 mAh |
| Charger, watts | 33W Wired fast charging Reverse charging by cable Quick Charge 3 USB Power Delivery 2.0 | 18W Wired fast charging Quick Charge 4+ |
| Inductive / wireless charging | Not supported | Not supported |
| Talk time autonomy | 48 hours (2 days) | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| HMD XR21 | Xiaomi Mi 8 (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: Midnight Black | • Colors: Black, Blue, White, Gold • MIUI 9.5 • Always-On Display • WiFi display |
☢️ Radiation rate | ||
| HMD XR21 | Xiaomi Mi 8 (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 |