Side-by-side technical data
Xiaomi Poco C81x vs Xiaomi Poco C81
Comparison between Xiaomi Poco C81x and Xiaomi Poco C81: camera, battery, fast charging, display, performance and colors, side by side. More phones from Xiaomi.
NeoTeo's verdict
Which of the two is the better buy
The Xiaomi Poco C81x suits buyers who value a lighter phone: it weighs 193 g versus 208 g for the Xiaomi Poco C81. The Xiaomi Poco C81 is the more complete choice for battery, memory, and display brightness, with 6,300 mAh versus 5,200 mAh, 4GB versus 3GB of RAM, and Android 16 versus Android 15. The overall gap is small: 4.3 versus 4.1.
Both use an IPS LCD display with 720 px resolution and a 120Hz refresh rate, but the Xiaomi Poco C81 reaches 800 nits versus 650 nits on the C81x. That remains below the usual market reference, although the C81 leaves more room for outdoor viewing. Their aspect ratios also differ: 20:9 on the C81 versus 21:9 on the C81x. The Unisoc Tiger T615 (T7250), 64GB maximum storage, and LPDDR4X RAM are shared, while the C81 starts with 4GB of RAM versus 3GB.
The battery favors the Xiaomi Poco C81: 6,300 mAh versus 5,200 mAh, with 15W fast charging on both. The C81x counters with a lighter body and adds QZSS to its navigation systems, while the C81 offers slow-motion video recording. Both retain a 3.5mm audio jack, expandable storage, reverse charging, and the same Mali-G57 MP1 GPU; the choice is between lower weight and more battery, RAM, and brightness.
Xiaomi Poco C81x
The Xiaomi Poco C81x is the better buy for a lighter phone, weighing 193 g versus 208 g for the Xiaomi Poco C81.
Xiaomi Poco C81
The Xiaomi Poco C81 is the better buy for battery and brightness, offering 6,300 mAh and 800 nits versus 5,200 mAh and 650 nits.
The verdict
Neither runs away with it: each wins something.
| Category | Poco C81x | Poco C81 |
|---|---|---|
| Design & display | 5.6 | 5.5 |
| Performance & hardware | 2.6 | 2.8 |
| Camera | 3.0 | 2.0 |
| Connectivity | 5.4 | 5.4 |
| Battery & charging | 6.2 | 6.5 |
Which one is for you?
Xiaomi Poco C81x, if you care about…
- Weight
- 193 g
- against 208 g
Xiaomi Poco C81, if you care about…
- Battery Capacity
- 6,300 mAh
- against 5,200 mAh
- RAM Capacity
- 4 GB
- against 3 GB
- Peak Display Brightness
- 800 nits
- against 650 nits
- OS Version
- 16
- against 15
Specification comparison
Performance
| Specification | Poco C81x | Poco C81 |
|---|---|---|
| Processor Model | Unisoc Tiger T615 (T7250) | Unisoc Tiger T615 (T7250) |
| Processor Process Size | 12 nm | 12 nm |
| Graphics GPU | Mali-G57 MP1 | Mali-G57 MP1 |
| Storage Type | eMMC 5.1 | eMMC 5.1 |
| Maximum CPU Clock | 1.8 GHz | 1.8 GHz |
| Maximum Storage Capacity | 64 GB | 64 GB |
| AnTuTu Score | 308,681 | 308,681 |
| Geekbench 6 Single-Core | 437 | 437 |
| Geekbench 6 Multi-Core | 1,461 | 1,461 |
| CPU Description | Octa-core CPU with 2 Cortex-A75 cores at 1.8 GHz and 6 Cortex-A55 cores at 1.6 GHz. | Octa-core CPU with 2 Cortex-A75 cores at 1.8 GHz and 6 Cortex-A55 cores at 1.6 GHz. |
| Processor Type | Octa-Core | Octa-Core |
| 64-Bit Processor | Yes | Yes |
| RAM Capacity | 3 GB | 4 GB Best value |
| RAM Type | LPDDR4X | LPDDR4X |
| Expandable Storage | Yes | Yes |
| AnTuTu version | v10 | v10 |
Design
| Specification | Poco C81x | Poco C81 |
|---|---|---|
| Body Colors | Blue, Black, Cyan | Blue, Cyan, Black, Gold |
| Body Thickness | 8.3 mm | 8.2 mm Best value |
| Body Width | 77.8 mm | 79.5 mm |
| Body Height | 171.8 mm | 171.6 mm |
| Weight | 193 g Best value | 208 g |
| Usable Surface | 84.1 % | 84.3 % Best value |
| Body Materials | Plastic | Glass, Plastic |
| Resistance Features | Dust Resistant, Splash Resistant, Water Resistant | Splash Resistant, Water Resistant |
Battery
| Specification | Poco C81x | Poco C81 |
|---|---|---|
| Battery Capacity | 5,200 mAh | 6,300 mAh Best value |
| Battery Type | Li-Polymer | Li-Polymer |
| Fast Charge Power | 15 W | 15 W |
| Battery Features | Non-Removable, Fast Charging, Reverse Charging, Rechargeable, Battery Level Indicator, Charger Included | Non-Removable, Fast Charging, Reverse Charging, Rechargeable, Battery Level Indicator, Charger Included |
Display
| Specification | Poco C81x | Poco C81 |
|---|---|---|
| Display Aspect Ratio | 21:9 | 20:9 |
| Display Technology | IPS LCD | IPS LCD |
| Peak Display Brightness | 650 nits | 800 nits Best value |
| Display Diagonal | 6.88″ | 6.9″ Best value |
| Display Horizontal Resolution | 720 px | 720 px |
| Display Vertical Resolution | 1,640 px Best value | 1,600 px |
| Display Pixel Density | 260 ppi Best value | 254 ppi |
| Display Refresh Rate | 120 Hz | 120 Hz |
| Touch Sampling Rate | 240 Hz | 240 Hz |
| Display Contrast Ratio | 1,500 :1 | 1,500 :1 |
| Display Features | Water Drop Notch, Capacitive Touch, Multi-Touch, Frameless, TÜV Rheinland Eye Comfort Certification | Water Drop Notch, Capacitive Touch, Multi-Touch, Frameless, TÜV Rheinland Eye Comfort Certification |
Sensors
| Specification | Poco C81x | Poco C81 |
|---|---|---|
| Fingerprint Sensor Placement | Side | Side |
Sensor
| Specification | Poco C81x | Poco C81 |
|---|---|---|
| Sensor Features | Fingerprint Sensor, Accelerometer, Compass, Light Sensor, Virtual Proximity Sensing | Fingerprint Sensor, Accelerometer, Compass, Light Sensor, Virtual Proximity Sensing |
Software
| Specification | Poco C81x | Poco C81 |
|---|---|---|
| Operating System | Android 15 | Android 16 |
| OS Family | Android | Android |
| OS Version | 15 | 16 Best value |
| OS Update Support | 4 years | 4 years |
| Google Services | Yes | Yes |
Connectivity
| Specification | Poco C81x | Poco C81 |
|---|---|---|
| SIM Configurations | Dual Nano-SIM, Dual SIM Dual Standby | Dual Nano-SIM, Dual SIM Dual Standby, Dual SIM |
| 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, 4G LTE B28A, 4G LTE B28B, 4G LTE B40, 4G LTE B41 | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B1, 3G UMTS B5, 3G UMTS B8, 4G LTE B1, 4G LTE B3, 4G LTE B5, 4G LTE B8, 4G LTE B28A, 4G LTE B40, 4G LTE B41 |
| Cellular Technologies | GSM, HSPA, LTE | GSM, HSPA, LTE |
| Wi-Fi Standards | Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 802.11a/b/g | Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 802.11a/b/g |
| Wi-Fi Features | Dual Band, Wi-Fi Hotspot | Dual Band, Wi-Fi Hotspot |
| Bluetooth Version | Bluetooth 5.2 | Bluetooth 5.2 |
| Bluetooth Profiles | A2DP, LE | A2DP, LE |
| Navigation Systems | GPS, A-GPS, GLONASS, BeiDou, Galileo, QZSS Best value | GPS, A-GPS, GLONASS, BeiDou, Galileo |
| Connectivity Features | 3.5 mm Audio Jack, FM Radio, Virtual Proximity Sensing, USB Charging, USB Mass Storage, USB Host 2.0, USB OTG, USB Type-C, Computer Sync, OTA Sync, Tethering, VoLTE | USB Charging, USB Mass Storage, USB OTG, USB Host 2.0, USB Type-C, 3.5 mm Audio Jack, FM Radio, Computer Sync, OTA Sync, Tethering, VoLTE, Virtual Proximity Sensing |
| USB Version | USB 2.0 | USB 2.0 |
| Max. download speed | 300 Mbps | 300 Mbps |
| Max. upload speed | 150 Mbps | 150 Mbps |
Audio
| Specification | Poco C81x | Poco C81 |
|---|---|---|
| Microphone Count | 1 | 1 |
| Audio Features | A2DP, LE | A2DP, LE |
Technical
| Specification | Poco C81x | Poco C81 |
|---|---|---|
| Model numbers | — | 25128RN17G |
