Tecno Spark Slim has better RAM than Tecno Spark 40. In terms of display resolution, Tecno Spark Slim has better resolution of 2720 x 1224 than Tecno Spark 40 which has resolution of 1600 x 720. Both have the same amount of internal memory.
| Name | Tecno Spark 40 | Tecno Spark Slim |
| RAM | 4 GB | 8 GB |
|---|---|---|
| Display | 6.67 in | 6.78 in |
| Internal Memory | 128 GB | 128 GB |
| Battery | 5200 mAh | 5160 mAh |
| Camera | 50 MP | 50 MP |
| Price | Rs. 10999 | Rs. 19999 |
The launch Date of the first phone is July 02, 2025. The Expected cost of Tecno Spark 40 is Rs. 10999. The launch Date of the second phone is September 02, 2025. The Expected cost of Tecno Spark Slim is Rs. 19999.
Tecno Spark 40 has screen size of 6.67 inches which falls short to Tecno Spark Slim's 6.78 inch screen. Tecno Spark 40 has IPS Screen type where as Tecno Spark Slim has AMOLED Screen type. Tecno Spark Slim has display density of 440 PPI & Tecno Spark 40 has only 263 PPI display density.
Tecno Spark Slim's larger 8 GB RAM is better for playing games and all with respect to Tecno Spark 40's lower 4 GB RAM. and both have same Internal Memory of 128 GB.
Tecno Spark 40 has 50 MP Rear Camera in comparison to Tecno Spark Slim's 50 MP Rear Camera. Tecno Spark Slim will be better choice if you're looking to click lot of selfies as it has better 13 MP Front Camera in comparison to Tecno Spark 40's 8 MP Front Camera.
Both the phones run on Android Operating System Version 15.
| Name | Tecno Spark 40 | Tecno Spark Slim |
| General | ||
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | Nano+Nano SIM |
| Device Type | Smartphone | Smartphone |
| Release Date | July 02, 2025 | September 02, 2025 |
| Design | ||
| Dimensions | 77 x 165.6 x 7.7 mm | |
| Weight | 156 g | |
| Bezel less | No | No |
| Colors | Ink Black, Titanium Grey, Veil White, Mirage Blue | Black, Blue, White |
| Display | ||
| Type | Color IPS Screen | Color AMOLED Screen |
| Touch | Yes | Yes |
| Size | 6.67 inches, 720 x 1600 pixels, 120 Hz | 6.78 inches, 1224 x 2720 pixels, 144 Hz |
| PPI | ~ 263 PPI | ~ 440 PPI |
| Screen to Body Ratio | ~ 84.2% | |
| Glass Type | Corning Gorilla Glass 7i | |
| Brightness | 4500nits | |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
| Memory | ||
| RAM | 4 GB | 8 GB |
| Storage | 128 GB | 128 GB |
| Card Slot | Yes | |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| VoLTE | Yes, Dual Stand-By | Yes |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Bluetooth | Yes | Yes |
| USB | Yes, USB-C | Yes, USB-C |
| USB Features | USB Tethering, USB on-the-go, USB Charging, USB Storage | USB Tethering, USB on-the-go, USB Charging, USB Storage |
| IR Blaster | Yes | Yes |
| Extra | ||
| GPS | Yes | Yes |
| Fingerprint Sensor | Yes, Side | Yes, Side |
| Face Unlock | Yes | |
| Sensors | Software Gyroscope, Infrared Remote Control | |
| 3.5mm Headphone Jack | Yes | No |
| NFC | Yes | |
| AI Features | ELLA AI | |
| Water Resistance | Yes, 1.5 m | Yes, 1.5 m |
| IP Rating | IP64 | IP64 |
| Dust Resistant | Yes | Yes |
| Camera | ||
| Rear Camera | 50 MP (Wide Angle) | 50 MP (Wide Angle) |
| Auto Focus | Yes | Yes |
| Features | HDR | |
| Video Recording | 1440p @ 30 fps QHD, 1080p @ 30 fps FHD | 1440p @ 30 fps QHD, 1080p @ 30 fps FHD |
| Flash | Yes, Dual LED | Yes, LED |
| Front Camera | 8 MP (Wide Angle) Punch Hole | 13 MP (Wide Angle) Punch Hole |
| Front Video Recording | 1080p @ 30 fps FHD | |
| Technical | ||
| OS | Android v15 | Android v15 |
| Chipset | Mediatek Helio G81 | Mediatek Helio G200 |
| CPU | 2 GHz, Octa Core Processor | 2.2 GHz, Octa Core Processor |
| GPU | Mali-G52 MC2 | Mali-G57 MC2 (1.1GHz) |
| Java | No | No |
| Browser | Yes | |
| Multimedia | ||
| Yes | Yes | |
| Music | Yes | Yes |
| Video | Yes | Yes |
| FM Radio | Yes | No |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 5200 mAh | 5160 mAh |
| Fast Charging | Yes, 45W | Yes, 45W |
| Reverse Charging | Yes, 10W | |