Side-by-side technical data
TCL 40 NxtPaper vs Oppo K12x 5G
Comparison between TCL 40 NxtPaper and Oppo K12x 5G: camera, battery, fast charging, display, performance and colors, side by side. More phones from TCL and Oppo.
The verdict
Neither runs away with it: each wins something.
| Category | 40 NxtPaper | K12x 5G |
|---|---|---|
| Design & display | 6.5 | 6.0 |
| Performance & hardware | 4.0 | 4.8 |
| Camera | 4.6 | 3.7 |
| Connectivity | 6.0 | 6.5 |
| Battery & charging | 5.7 | 6.0 |
Which one is for you?
TCL 40 NxtPaper, if you care about…
- Display Pixel Density
- 396 ppi
- against 264 ppi
- Display Horizontal Resolution
- 1,080 px
- against 720 px
- Display Vertical Resolution
- 2,460 px
- against 1,604 px
Oppo K12x 5G, if you care about…
- AnTuTu Score
- 409,464
- against 261,200
- Storage Type
- UFS 2.2
- against eMMC 5.1
- Bluetooth Version
- Bluetooth 5.3
- against Bluetooth 5.1
- Display Refresh Rate
- 120 Hz
- against 90 Hz
Specification comparison
Performance
| Specification | 40 NxtPaper | K12x 5G |
|---|---|---|
| Processor Model | MediaTek Helio G88 | MediaTek Dimensity 6300 |
| Processor Process Size | 12 nm | 6 nm Best value |
| Graphics GPU | Mali-G52 MC2 | Mali-G57 MC2 |
| Storage Type | eMMC 5.1 | UFS 2.2 Best value |
| Maximum CPU Clock | 2 GHz | 2.4 GHz Best value |
| Maximum Storage Capacity | 256 GB | 256 GB |
| AnTuTu Score | 261,200 | 409,464 Best value |
| Geekbench 6 Single-Core | 425 | — |
| Geekbench 6 Multi-Core | 1,355 | — |
| CPU Description | Octa-core processor with 2 Cortex-A75 cores at 2.0 GHz and 6 Cortex-A55 cores at 1.8 GHz. | Octa-core CPU with 2x2.4 GHz Cortex-A76 and 6x2.0 GHz Cortex-A55 cores. |
| Processor Type | Octa-Core | Octa-Core |
| 64-Bit Processor | Yes | Yes |
| RAM Capacity | 8 GB | 8 GB |
| RAM Type | DDR4 | LPDDR4X |
| Expandable Storage | Yes | Yes |
| AnTuTu version | v10 | v10 |
Design
| Specification | 40 NxtPaper | K12x 5G |
|---|---|---|
| Body Colors | Black, White, Blue, Multicolor | Blue, Purple, Black, Pink |
| Body Thickness | 7.9 mm | 7.7 mm Best value |
| Body Width | 75.3 mm | 76 mm |
| Body Height | 168.2 mm | 165.7 mm |
| Weight | 195 g | 186 g Best value |
| Usable Surface | 86.2 % Best value | 85.2 % |
| Body Materials | Polycarbonate | Plastic, Splash Resistant |
| Resistance Features | Stylus Support | IP54, MIL-STD-810H |
Battery
| Specification | 40 NxtPaper | K12x 5G |
|---|---|---|
| Battery Capacity | 5,010 mAh | 5,100 mAh Best value |
| Battery Type | Li-Ion | Li-Polymer |
| Fast Charge Power | 33 W | 45 W Best value |
| Battery Features | Fast Charging, Non-Removable, Battery Level Indicator, Charger Included, Rechargeable | Fast Charging, Non-Removable, USB Power Delivery |
Display
| Specification | 40 NxtPaper | K12x 5G |
|---|---|---|
| Display Aspect Ratio | 20:9 | 20:9 |
| Display Technology | IPS LCD | IPS LCD |
| Peak Display Brightness | 900 nits | 1,000 nits Best value |
| Display Diagonal | 6.78″ Best value | 6.67″ |
| Display Horizontal Resolution | 1,080 px Best value | 720 px |
| Display Vertical Resolution | 2,460 px Best value | 1,604 px |
| Display Pixel Density | 396 ppi Best value | 264 ppi |
| Display Refresh Rate | 90 Hz | 120 Hz Best value |
| Touch Sampling Rate | — | 240 Hz |
| Display Contrast Ratio | 1,500 :1 | — |
| Display Features | Water Drop Notch, TÜV Rheinland Eye Comfort Certification, DCI-P3, Scratch Resistant, Curved Glass, Capacitive Touch, Multi-Touch, Frameless, NxtPaper technology | Hole-Punch Notch, SGS Certified, DCI-P3, Scratch Resistant, Panda Glass, Capacitive Touch, Multi-Touch, Frameless |
Sensors
| Specification | 40 NxtPaper | K12x 5G |
|---|---|---|
| Fingerprint Sensor Placement | Side | Side |
Sensor
| Specification | 40 NxtPaper | K12x 5G |
|---|---|---|
| Sensor Features | Fingerprint Sensor, Accelerometer, Proximity Sensor, Compass, Gravity Sensor, Light Sensor | Fingerprint Sensor, Accelerometer, Proximity Sensor, Compass, Gravity Sensor, Light Sensor |
Software
| Specification | 40 NxtPaper | K12x 5G |
|---|---|---|
| Operating System | Android 13 | Android 14 |
| OS Family | Android | Android |
| OS Version | 13 | 14 Best value |
| Google Services | Yes | Yes |
Connectivity
| Specification | 40 NxtPaper | K12x 5G |
|---|---|---|
| SIM Configurations | Dual Nano-SIM, Dual SIM Dual Standby | 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 1700 AWS, 3G UMTS 1900, 3G UMTS 2100, 3G UMTS B1, 3G UMTS B2, 3G UMTS B5, 3G UMTS B8, 4G LTE B1, 4G LTE B2, 4G LTE B3, 4G LTE B4, 4G LTE B5, 4G LTE B7, 4G LTE B8, 4G LTE B12, 4G LTE B13, 4G LTE B17, 4G LTE B20, 4G LTE B28A, 4G LTE B28B, 4G LTE B38, 4G LTE B40, 4G LTE B41, 4G LTE B66 | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B900, 3G UMTS 2100, 3G UMTS B1, 3G UMTS B8, 4G LTE B1, 4G LTE B3, 4G LTE B5, 4G LTE B8, 4G LTE B28A, 4G LTE B40, 4G LTE B41, 5G NR n1, 5G NR n3, 5G NR n5, 5G NR n8, 5G NR n28a, 5G NR n40, 5G NR n41, 5G NR n77, 5G NR n78, 5G NR n88 |
| Cellular Technologies | GSM, HSPA, UMTS, LTE | GSM, HSPA, LTE, 5G Best value |
| Wi-Fi Standards | Wi-Fi 802.11a/b/g/n/ac, Wi-Fi 4 (802.11n), 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 | Dual Band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display |
| Bluetooth Version | Bluetooth 5.1 | Bluetooth 5.3 Best value |
| Bluetooth Profiles | A2DP, LE, EDR | A2DP, LE, aptX HD |
| Navigation Systems | GPS, A-GPS, GLONASS, BeiDou, Galileo | GPS, A-GPS, Galileo, GLONASS, BeiDou, QZSS Best value |
| Connectivity Features | 3.5 mm Audio Jack, NFC, FM Radio, USB Type-C, USB Charging, USB Mass Storage, USB Host 2.0, USB OTG, Computer Sync, OTA Sync, Tethering, VoLTE, VoWiFi | 3.5 mm Audio Jack, USB Charging, USB Mass Storage, USB OTG, USB Host 2.0, USB Type-C, NFC, Computer Sync, OTA Sync, Tethering, VoLTE |
| USB Version | USB 2.0 | USB 2.0 |
| SAR American Head | — | 1.18 W/kg |
| SAR American Body | — | 1.19 W/kg |
| Max. download speed | 300 Mbps | — |
| Max. upload speed | 100 Mbps | — |
Audio
| Specification | 40 NxtPaper | K12x 5G |
|---|---|---|
| Audio Features | Stereo Speakers, A2DP, LE, EDR | aptX HD |
Technical
| Specification | 40 NxtPaper | K12x 5G |
|---|---|---|
| Model numbers | T612B | CPH2667 |
