Side-by-side technical data
Tecno Spark 4 Air vs Tecno Spark 40C
Comparison between Tecno Spark 4 Air and Tecno Spark 40C: camera, battery, fast charging, display, performance and colors, side by side. More phones from Tecno.
NeoTeo's verdict
Which of the two is the better buy
The Tecno Spark 40C is the better choice for buyers who want more battery capacity and stronger performance: it has 6,000 mAh versus 3,000 mAh and 8 GB of RAM versus 2 GB. Its MediaTek Helio G81 and Android 15 also set it apart from the Spark 4 Air’s MediaTek Helio A22 and Android 9.
The Spark 40C has the larger display at 6.67″ versus 6.1″, while the Spark 4 Air is sharper on paper at 282 ppi versus 263 ppi. The 40C records rear video at 1080p at 30 fps and 2K at 30 fps; the Air tops out at 720p at 30 fps. Front camera resolution is 8 MP versus 5 MP.
The Spark 4 Air is lighter at 168 g versus 196 g. The 40C counters with 256 GB of storage versus 32 GB, Bluetooth 5.3 versus Bluetooth 5.0, and an infrared port; both have a 3.5 mm jack. For more storage, a 6,000 mAh battery, and Android 15, the Spark 40C is the stronger pick.
Tecno Spark 4 Air
The Tecno Spark 4 Air is the better buy for buyers who want a lighter phone: it weighs 168 g versus 196 g.
Tecno Spark 40C
The Tecno Spark 40C is the better buy for buyers who want a larger battery and more storage: 6,000 mAh and 256 GB versus 3,000 mAh and 32 GB.
The verdict
Your pick: Tecno Spark 40C, ahead on Design & display, Performance & hardware, Camera, Connectivity and Battery & charging.
| Category | Spark 4 Air | Spark 40C |
|---|---|---|
| Design & display | 5.0 | 5.5 |
| Performance & hardware | 1.9 | 3.1 |
| Camera | 2.0 | 3.5 |
| Connectivity | 4.1 | 5.6 |
| Battery & charging | 2.2 | 6.6 |
Which one is for you?
Tecno Spark 4 Air, if you care about…
- Display Pixel Density
- 282 ppi
- against 263 ppi
- Weight
- 168 g
- against 196 g
- Max. upload speed
- 150 Mbps
- against 100 Mbps
Tecno Spark 40C, if you care about…
- Battery Capacity
- 6,000 mAh
- against 3,000 mAh
- RAM Capacity
- 8 GB
- against 2 GB
- Bluetooth Version
- Bluetooth 5.3
- against Bluetooth 5.0
- Maximum Storage Capacity
- 256 GB
- against 32 GB
Specification comparison
Performance
| Specification | Spark 4 Air | Spark 40C |
|---|---|---|
| Processor Model | MediaTek Helio A22 | MediaTek Helio G81 |
| Processor Process Size | 12 nm | 12 nm |
| Graphics GPU | PowerVR GE8300 | Mali-G52 MC2 |
| Storage Type | eMMC 5.1 | eMMC 5.1 |
| Maximum CPU Clock | 2 GHz | 2 GHz |
| Maximum Storage Capacity | 32 GB | 256 GB Best value |
| AnTuTu Score | 34,204 | 250,000 |
| Geekbench 6 Single-Core | 332 | 420 Best value |
| Geekbench 6 Multi-Core | 1,145 | 1,391 Best value |
| CPU Description | 4x 2.0 GHz ARM Cortex-A53 | Octa-core CPU with 2x Cortex-A75 at 2.0 GHz and 6x Cortex-A55 at up to 1.8 GHz. |
| Processor Type | Quad-Core | Octa-Core |
| 64-Bit Processor | Yes | Yes |
| RAM Capacity | 2 GB | 8 GB Best value |
| RAM Type | — | DDR4 |
| Expandable Storage | Yes | Yes |
| AnTuTu version | — | v10 |
Design
| Specification | Spark 4 Air | Spark 40C |
|---|---|---|
| Body Colors | — | White, Blue, Grey, Black |
| Body Thickness | 9.2 mm | 8.4 mm Best value |
| Body Width | 75 mm | 77 mm |
| Body Height | 156.1 mm | 165.6 mm |
| Weight | 168 g Best value | 196 g |
| Usable Surface | 78.27 % | 84.2 % Best value |
| Body Materials | Plastic | Glass, Plastic, Polycarbonate |
| Resistance Features | — | IP64 |
Battery
| Specification | Spark 4 Air | Spark 40C |
|---|---|---|
| Battery Capacity | 3,000 mAh | 6,000 mAh Best value |
| Battery Type | Li-Ion | Li-Polymer |
| Fast Charge Power | — | 18 W |
| Battery Features | Battery Level Indicator, Charger Included, Rechargeable, Removable | Fast Charging, Reverse Charging, Non-Removable, Rechargeable, Battery Level Indicator |
Display
| Specification | Spark 4 Air | Spark 40C |
|---|---|---|
| Display Aspect Ratio | 19.5:9 | 20:9 |
| Display Technology | IPS LCD | IPS LCD |
| Display Diagonal | 6.1″ | 6.67″ Best value |
| Display Horizontal Resolution | 720 px | 720 px |
| Display Vertical Resolution | 1,560 px | 1,600 px Best value |
| Display Pixel Density | 282 ppi Best value | 263 ppi |
| Display Refresh Rate | — | 120 Hz |
| Display Features | Touchscreen | Hole-Punch Notch, Capacitive Touch, Multi-Touch, Scratch Resistant, Frameless, 120Hz |
Sensors
| Specification | Spark 4 Air | Spark 40C |
|---|---|---|
| Fingerprint Sensor Placement | Rear | Side |
Sensor
| Specification | Spark 4 Air | Spark 40C |
|---|---|---|
| Sensor Features | Accelerometer, Fingerprint Sensor | Fingerprint Sensor, Accelerometer, Gyroscope, Light Sensor, Proximity Sensor, Cooling System |
Software
| Specification | Spark 4 Air | Spark 40C |
|---|---|---|
| Operating System | Android 9 | Android 15 |
| OS Family | Android | Android |
| OS Version | 9 | 15 Best value |
| Google Services | — | Yes |
| Widevine L1 | — | Yes |
Connectivity
| Specification | Spark 4 Air | Spark 40C |
|---|---|---|
| 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 B1, 3G UMTS B5, 3G UMTS B8, 4G LTE B1, 4G LTE B2, 4G LTE B3, 4G LTE B5, 4G LTE B7, 4G LTE B8, 4G LTE B20, 4G LTE B38, 4G LTE B40, 4G LTE B41 |
| Cellular Technologies | 4G, LTE, GSM | GSM, HSPA, LTE |
| Wi-Fi Standards | Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 802.11 b/g/n | Wi-Fi 802.11a/b/g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac) |
| Wi-Fi Features | Wi-Fi Hotspot | Dual Band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display |
| Bluetooth Version | Bluetooth 5.0 | Bluetooth 5.3 Best value |
| Bluetooth Profiles | A2DP | A2DP |
| Navigation Systems | GPS, GLONASS, BeiDou, Galileo | GPS, A-GPS, GLONASS, BeiDou, Galileo Best value |
| Connectivity Features | 3.5 mm Audio Jack, FM Radio, USB 2.0 | 3.5 mm Audio Jack, Infrared, FM Radio, USB Type-C, USB OTG, USB Charging, USB Mass Storage, USB Host 2.0, USB Host, Computer Sync, OTA Sync, Tethering, VoLTE |
| USB Version | USB 2.0 | USB Type-C |
| Max. download speed | 300 Mbps | 300 Mbps |
| Max. upload speed | 150 Mbps Best value | 100 Mbps |
Audio
| Specification | Spark 4 Air | Spark 40C |
|---|---|---|
| Audio Features | — | Stereo Speakers, DTS, DTS:X, A2DP |
Technical
| Specification | Spark 4 Air | Spark 40C |
|---|---|---|
| Model numbers | — | KM4k |
