Both Tecno Spark Slim and Tecno Spark 40 Pro comes with same RAM. In terms of display resolution, Tecno Spark Slim has better resolution of 2720 x 1224 than Tecno Spark 40 Pro which has resolution of 2712 x 1220. Both have the same amount of internal memory.
| Name | Tecno Spark Slim | Tecno Spark 40 Pro |
| RAM | 8 GB | 8 GB |
|---|---|---|
| Display | 6.78 in | 6.78 in |
| Internal Memory | 128 GB | 128 GB |
| Battery | 5160 mAh | 5200 mAh |
| Camera | 50 MP | 50 MP |
| Price | Rs. 19999 | Rs. 15999 |
The launch Date of the first phone is September 02, 2025. The Expected cost of Tecno Spark Slim is Rs. 19999. The launch Date of the second phone is July 02, 2025. The Expected cost of Tecno Spark 40 Pro is Rs. 15999.
There is AMOLED Screen Type in both the phones. Tecno Spark Slim has display density of 440 PPI & Tecno Spark 40 Pro has only 439 PPI display density.
Both phones come with 8 GB RAM and both have same Internal Memory of 128 GB.
Tecno Spark Slim has 50 MP Rear Camera in comparison to Tecno Spark 40 Pro's 50 MP Rear Camera. Both of them stand equal in terms of Front Camera Resolution as both have 13 MP Front Camera.
Both the phones run on Android Operating System Version 15.
| Name | Tecno Spark Slim | Tecno Spark 40 Pro |
| 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 | September 02, 2025 | July 02, 2025 |
| Design | ||
| Weight | 156 g | |
| Bezel less | No | No |
| Colors | Black, Blue, White | Ink Black, Moon Titanium, Lake Blue, Bamboo Green |
| Display | ||
| Type | Color AMOLED Screen | Color AMOLED Screen (1B Colors) |
| Touch | Yes | Yes |
| Size | 6.78 inches, 1224 x 2720 pixels, 144 Hz | 6.78 inches, 1220 x 2712 pixels, 144 Hz |
| PPI | ~ 440 PPI | ~ 439 PPI |
| Glass Type | Corning Gorilla Glass 7i | |
| Brightness | 4500nits | |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
| Memory | ||
| RAM | 8 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 | Yes, Dual Stand-By |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Bluetooth | Yes | Yes, v5.3 |
| 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, In Display |
| Face Unlock | Yes | |
| Sensors | Accelerometer, Gyro, Proximity, Compass | |
| 3.5mm Headphone Jack | No | Yes |
| NFC | Yes | Yes |
| AI Features | ELLA AI | |
| Water Resistance | Yes, 1.5 m | Yes |
| 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 | HDR |
| Video Recording | 1440p @ 30 fps QHD, 1080p @ 30 fps FHD | 1440p @ 30 fps QHD, 1080p @ 30 fps FHD |
| Flash | Yes, LED | Yes, Dual LED |
| Front Camera | 13 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 G200 | Mediatek Helio G100 |
| CPU | 2.2 GHz, Octa Core Processor | 2.2 GHz, Octa Core Processor |
| GPU | Mali-G57 MC2 (1.1GHz) | Mali-G57 MC2 |
| Java | No | No |
| Browser | Yes | |
| Multimedia | ||
| Yes | Yes | |
| Music | Yes | Yes |
| Video | Yes | Yes |
| FM Radio | No | Yes |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Removable Battery |
| Size | 5160 mAh | 5200 mAh |
| Fast Charging | Yes, 45W | Yes, 45W |
| Reverse Charging | Yes, 10W | |