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- Spark 40 4G vs Y21d
Tecno Spark 40 4G vs Vivo Y21d
What Spark 40 4G does better (7) and where Y21d wins (3) — every spec side by side.
vs
5.8Display5.4
4.6Camera4.1
7.9Battery8.4
5.7Features5.4
Dimensions
Size comparison
Spark 40 4GY21d
| Spark 40 4G | Y21d | Difference | |
|---|---|---|---|
| Height | 165.6 mm | 166.1 mm | −0.5 mm |
| Width | 77 mm | 77 mm | = |
| Thickness | 7.7 mm | 8.4 mm | −0.7 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is Spark 40 4G better than Y21d?
- NFCYes · Y21d: No
- Refresh rate120 Hz vs 90 Hz+33%
- Wired charging45 W vs 44 W+2%
- 3.5 mm headphone jackYes · Y21d: No
- CPU frequency2 GHz vs 1.8 GHz+11%
- Selfie camera8 MP vs 5 MP+60%
- Thickness7.7 mm vs 8.4 mm+9%
Why is Y21d better than Spark 40 4G?
- Battery capacity5,200 mAh vs 6,500 mAh+25%
- Water resistance (IPx)IPx4 vs IPx82×
- Wi-Fi standardWi-Fi 4 vs Wi-Fi 5+25%
Specifications
Side by side
| Design | ||
| Weight | — | 209 g |
| Thickness | 7.7 mm | 8.4 mm |
| Height | 165.6 mm | 166.1 mm |
| Width | 77 mm | 77 mm |
| Frame | — | Plastic |
| Back | — | Plastic |
| Ingress protection | IP64 | IP68 |
| Water resistance (IPx) | IPx4 | IPx8 |
| Glass protection | — | Ion strengthened glass |
| Colours | Ink Black, Titanium Grey, Veil White, Mirage Blue, Sun Orange | Lavender Purple, Black |
| Display | ||
| Screen size | 6.7″ | 6.7″ |
| Panel | IPS LCD | IPS LCD |
| OLED panel | No | No |
| Resolution (width) | 720 px | 720 px |
| Resolution (height) | 1,600 px | 1,608 px |
| Pixel density | 263 ppi | 264 ppi |
| Refresh rate | 120 Hz | 90 Hz |
| Peak brightness | — | 1,000 nits |
| Screen-to-body ratio | 84.2% | 84% |
| Performance | ||
| Chipset | Mediatek Helio G81 | Unisoc T7225 |
| Chip maker | MediaTek | Unisoc |
| Process | 12 nm | 12 nm |
| CPU cores | 8 | 8 |
| CPU frequency | 2 GHz | 1.8 GHz |
| GPU | Mali-G52 MC2 | Mali-G52 MP1 |
| Memory | ||
| RAM | 8 GB | 8 GB |
| Storage (max) | 256 GB | 256 GB |
| Storage (base) | 128 GB | 128 GB |
| Storage type | — | eMMC 5.1 |
| Memory card slot | Yes | Yes |
| Camera | ||
| Main camera | 50 MP | 50 MP |
| Main camera aperture | — | f/1.8 |
| Rear cameras | 1 | 1 |
| Optical stabilisation | No | No |
| Ultra-wide camera | No | No |
| Telephoto camera | No | No |
| Max video | 1080p | 1080p |
| Selfie camera | 8 MP | 5 MP |
| 4K selfie video | No | No |
| Battery | ||
| Battery capacity | 5,200 mAh | 6,500 mAh |
| Battery type | — | Si/C |
| Wired charging | 45 W | 44 W |
| Charged in 30 min | — | 38% |
| Wireless charging | No | No |
| Connectivity | ||
| 5G | — | No |
| eSIM | No | No |
| Dual SIM | Yes | Yes |
| Wi-Fi standard | Wi-Fi 4 | Wi-Fi 5 |
| Bluetooth | — | 5.2 |
| NFC | Yes | No |
| USB | USB Type-C | USB Type-C 2.0 |
| USB version | — | 2 |
| Satellite navigation | — | GLONASS, GALILEO, BDS, QZSS |
| Features | ||
| Stereo speakers | Yes | Yes |
| 3.5 mm headphone jack | Yes | No |
| Fingerprint sensor | Side | Side |
| Sensors | Fingerprint (side-mounted); unspecified sensors | Fingerprint (side-mounted), accelerometer, proximity, compass |
| Software | ||
| OS at launch | Android 15 | Android 15 |
| Platform | Android | Android |
| Interface | — | Funtouch 15 |
| EU label | ||
| Energy class | — | A |
