Xiaomi Redmi 15 4G vs Tecno Spark 40
Here you can compare Xiaomi Redmi 15 4G and Tecno Spark 40. Comparing Xiaomi Redmi 15 4G vs Tecno Spark 40 on Smartprix enables you to check their respective specs scores and unique features. It would potentially help you understand how Xiaomi Redmi 15 4G stands against Tecno Spark 40 and which one should you buy The current lowest price found for Xiaomi Redmi 15 4G is ₹13,990 and for Tecno Spark 40 is ₹10,999. The details of both of these products were last updated on Oct 22, 2026.
| Specification | Xiaomi Redmi 15 4G | Tecno Spark 40 |
|---|---|---|
| Display | 6.9 inches, 1080 x 2340 pixels, 144 Hz | 6.67 inches, 720 x 1600 pixels, 120 Hz |
| Battery | 7000 mAh | 5200 mAh |
| OS | Android v15 | Android v15 |
| RAM | 6 GB | 4 GB |
| CPU | 2.8 GHz, Octa Core Processor | 2 GHz, Octa Core Processor |
| Price | ₹13,990 | ₹10,999 |
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Overview
| Specs Score | 54 / 100 Better Specs | 50 / 100 |
| Display Resolution | 1080 x 2340 pixels Better Resolution | 720 x 1600 pixels |
| RAM | 6 GB More RAM | 4 GB |
| CPU Clock Speed | 2.8 GHz Faster Clock Speed | 2 GHz |
| Weight | 224 g Lighter | |
| Thickness | 8.6 mm | 7.7 mm Slimmer |
| Battery | 7000 mAh Bigger Battery | 5200 mAh |
| Unique Features | No No NFC | 3.5mm Audio Jack FM Radio No |
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 | August 01, 2025 | July 02, 2025 |
Design
| Dimensions | 82.1 x 171.1 x 8.6 mm | 77 x 165.6 x 7.7 mm |
| Weight | 224 g | |
| Bezel less | No | No |
| Colors | Midnight Black, Titan Gray, Sandy Purple | Ink Black, Titanium Grey, Veil White, Mirage Blue |
Display
| Type | Color IPS Screen | Color IPS Screen |
| Touch | Yes | Yes |
| Size | 6.9 inches, 1080 x 2340 pixels, 144 Hz | 6.67 inches, 720 x 1600 pixels, 120 Hz |
| Aspect Ratio | 19.5:9 | |
| PPI | ~ 374 PPI | ~ 263 PPI |
| Screen to Body Ratio | ~ 83.2% | ~ 84.2% |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
Memory
| RAM | 6 GB | 4 GB |
| Storage | 128 GB | 128 GB |
| Card Slot | Yes | 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, v5.0 | Yes |
| USB | Yes, USB-C | Yes, USB-C |
| USB Features | USB Tethering, USB on-the-go, USB Charging, USB Storage | |
| IR Blaster | Yes | Yes |
Extra
| GPS | Yes | Yes |
| Fingerprint Sensor | Yes, Side | Yes, Side |
| Sensors | Accelerometer, Compass | Software Gyroscope, Infrared Remote Control |
| 3.5mm Headphone Jack | No | Yes |
| NFC | Yes | |
| Water Resistance | Yes | Yes, 1.5 m |
| IP Rating | IP64 | IP64 |
| Dust Resistant | Yes | Yes |
Camera
| Rear Camera | 50 MP ƒ/1.8 (Wide Angle) | 50 MP (Wide Angle) |
| Auto Focus | Yes | Yes |
| Features | HDR | |
| Video Recording | 1080p @ 30 fps FHD | 1440p @ 30 fps QHD, 1080p @ 30 fps FHD |
| Flash | Yes, LED | Yes, Dual LED |
| Front Camera | 8 MP ƒ/2 (Wide Angle) Punch Hole | 8 MP (Wide Angle) Punch Hole |
| Front Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD |
| Front Camera Features | HDR | Dual-LED flash |
Technical
| OS | Android v15 | Android v15 |
| Chipset | Qualcomm Snapdragon 685 | Mediatek Helio G81 |
| CPU | 2.8 GHz, Octa Core Processor | 2 GHz, Octa Core Processor |
| Core Details | 4x Cortex-A73@2.8 GHz & 4x Cortex-A53@1.9 GHz | |
| GPU | Adreno 610 | Mali-G52 MC2 |
| Java | No | No |
| Browser | Yes | Yes |
Multimedia
| Yes | Yes | |
| Music | Yes | Yes |
| Video | Yes | Yes |
| FM Radio | No | Yes |
| Document Reader | Yes | Yes |
Battery
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 7000 mAh | 5200 mAh |
| Fast Charging | Yes, 33W | Yes, 45W |
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