Side-by-side technical data
Xiaomi Poco M8x vs vivo Y21 5G
Comparison between Xiaomi Poco M8x and vivo Y21 5G: camera, battery, fast charging, display, performance and colors, side by side. More phones from Xiaomi and vivo.
The verdict
Your pick: vivo Y21 5G, ahead on Design & display and Connectivity. Unless Performance & hardware decides it for you.
| Category | Poco M8x | Y21 5G |
|---|---|---|
| Design & display | 5.0 | 5.8 |
| Performance & hardware | 5.9 | 4.4 |
| Camera | 3.8 | 3.8 |
| Connectivity | 5.8 | 6.8 |
| Battery & charging | 7.1 | 7.1 |
Which one is for you?
Xiaomi Poco M8x, if you care about…
- Battery Capacity
- 7,900 mAh
- against 6,500 mAh
- Storage Type
- UFS 2.2
- against eMMC 5.1
- Body Materials
- Glass, Plastic, Leather
- against Glass, Plastic
vivo Y21 5G, if you care about…
- RAM Capacity
- 8 GB
- against 6 GB
- Bluetooth Version
- Bluetooth 5.4
- against Bluetooth 5.1
- Maximum Storage Capacity
- 256 GB
- against 128 GB
- Weight
- 209 g
- against 232 g
Specification comparison
Performance
| Specification | Poco M8x | Y21 5G |
|---|---|---|
| Processor Model | Qualcomm Snapdragon 4 Gen 5 | MediaTek Dimensity 6300 |
| Processor Process Size | 4 nm Best value | 6 nm |
| Graphics GPU | Qualcomm Adreno 613 | Mali-G57 MC2 |
| Storage Type | UFS 2.2 Best value | eMMC 5.1 |
| Maximum CPU Clock | 2.4 GHz | 2.4 GHz |
| Maximum Storage Capacity | 128 GB | 256 GB Best value |
| AnTuTu Score | — | 409,000 |
| CPU Description | Octa-core CPU with 2×2.4 GHz Cortex-A78 cores and 6×2.0 GHz Cortex-A55 cores | Octa-core: 2x2.4 GHz Cortex-A76 and 6x2.0 GHz Cortex-A55 |
| Processor Type | Octa-Core | Octa-Core |
| 64-Bit Processor | Yes | Yes |
| RAM Capacity | 6 GB | 8 GB Best value |
| RAM Type | DDR4 | LPDDR4X |
| Expandable Storage | Yes | Yes |
| AnTuTu version | — | v10 |
Design
| Specification | Poco M8x | Y21 5G |
|---|---|---|
| Body Colors | Green, Black, Blue | Gold, Blue, Black, Silver |
| Body Thickness | 8.8 mm | 8.4 mm Best value |
| Body Width | 78.4 mm | 77.1 mm |
| Body Height | 170.1 mm | 167.4 mm |
| Weight | 232 g | 209 g Best value |
| Usable Surface | 86.2 % Best value | 85 % |
| Body Materials | Glass, Plastic, Leather Best value | Glass, Plastic |
| Resistance Features | IP64 | IP65, MIL-STD-810H Best value |
| Drop Resistance Class | — | A |
| Repairability Class | — | C |
| Drop Test Count | — | 270 |
| Unfolded thickness | — | 8.4 mm |
Battery
| Specification | Poco M8x | Y21 5G |
|---|---|---|
| Battery Efficiency Rating | — | A |
| Battery Capacity | 7,900 mAh Best value | 6,500 mAh |
| Battery Type | — | Li-Ion |
| Fast Charge Power | 45 W Best value | 44 W |
| Battery Features | Fast Charging, Reverse Charging, Battery Level Indicator, Charger Included, Rechargeable | Fast Charging, Reverse Charging, Non-Removable |
| Battery Endurance | — | 67 h 13 min |
| Charge cycles | — | 1,600 |
Display
| Specification | Poco M8x | Y21 5G |
|---|---|---|
| Display Aspect Ratio | 20:9 | 20:9 |
| Display Technology | IPS LCD | IPS LCD |
| Peak Display Brightness | — | 1,200 nits |
| Display Diagonal | 6.9″ Best value | 6.74″ |
| Display Horizontal Resolution | 720 px | 720 px |
| Display Vertical Resolution | 1,600 px | 1,600 px |
| Display Pixel Density | 254 ppi | 260 ppi Best value |
| Display Refresh Rate | 120 Hz | 120 Hz |
| Display Features | Gorilla Glass 7i, Capacitive Touch | Mohs Level 4, Water Drop Notch, TÜV Rheinland Low Blue Light, Scratch Resistant, Capacitive Touch, Multi-Touch, Frameless, 120Hz |
Sensors
| Specification | Poco M8x | Y21 5G |
|---|---|---|
| Fingerprint Sensor Placement | Side | Side |
Sensor
| Specification | Poco M8x | Y21 5G |
|---|---|---|
| Sensor Features | Fingerprint Sensor, Accelerometer, Proximity Sensor, Compass | Fingerprint Sensor, Accelerometer, Proximity Sensor, Compass, Light Sensor |
Software
| Specification | Poco M8x | Y21 5G |
|---|---|---|
| Operating System | Android 16 | Android 16 |
| OS Family | Android | Android |
| OS Version | 16 | 16 |
| OS Update Support | — | 5 years |
| Google Services | — | Yes |
Connectivity
| Specification | Poco M8x | Y21 5G |
|---|---|---|
| SIM Configurations | Dual Nano-SIM, Dual SIM | Dual Nano-SIM, Dual SIM Dual Standby |
| Cellular Bands | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B850, 3G UMTS B900, 3G UMTS 2100, 4G LTE B1, 4G LTE B3, 4G LTE B5, 4G LTE B8, LTE B28, 4G LTE B40, 4G LTE B41, 5G NR n1, 5G NR n3, 5G NR n5, 5G NR n8, 5G NR n28, 5G NR n40, 5G NR n78 | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B1, 3G UMTS B4, 3G UMTS B5, 3G UMTS B8, 4G LTE B1, 4G LTE B3, 4G LTE B4, 4G LTE B5, 4G LTE B7, 4G LTE B8, 4G LTE B19, 4G LTE B20, 4G LTE B28A, 4G LTE B28B, 4G LTE B38, 4G LTE B40, 4G LTE B41, 4G LTE B66, 4G LTE B71, 5G NR n1, 5G NR n3, 5G NR n5, 5G NR n7, 5G NR n8, 5G NR n20, 5G NR n28a, 5G NR n28b, 5G NR n38, 5G NR n40, 5G NR n41, 5G NR n66, 5G NR n71, 5G NR n77, 5G NR n78 |
| Cellular Technologies | GSM, HSPA, LTE, 5G | GSM, HSPA, LTE, 5G |
| Wi-Fi Standards | Wi-Fi 5 (802.11ac) | Wi-Fi 802.11a/b/g/n/ac |
| Wi-Fi Features | — | Dual Band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display |
| Bluetooth Version | Bluetooth 5.1 | Bluetooth 5.4 Best value |
| Bluetooth Profiles | A2DP, LE | A2DP, EDR, HID, LE |
| Navigation Systems | GPS, GLONASS, Galileo, BeiDou | GPS, A-GPS, GLONASS, BeiDou, QZSS, Galileo Best value |
| Connectivity Features | 3.5 mm Audio Jack, FM Radio, NFC, USB Type-C, USB 2.0 | 3.5 mm Audio Jack, Infrared, USB Charging, USB Mass Storage, USB Host 2.0, USB OTG, USB Type-C, NFC, Computer Sync, OTA Sync, FM Radio, Tethering, VoLTE |
| USB Version | USB 2.0 | USB 2.0 |
| SAR American Head | 0.82 W/kg | — |
| SAR American Body | 0.67 W/kg | — |
| Max. download speed | 2,800 Mbps | — |
Audio
| Specification | Poco M8x | Y21 5G |
|---|---|---|
| Microphone Count | 2 | — |
| Audio Features | Stereo Speakers, Hi-Res Audio | Stereo Speakers, Bluetooth, A2DP, EDR, HID, LE |
Technical
| Specification | Poco M8x | Y21 5G |
|---|---|---|
| Model numbers | MZB0PXPIN | V2553, V2554 |
