Infinix Smart 20 and Tecno Spark 40 Pro both target smartphones buyers in Nigeria, but the deciding factors are ram / storage variants and official colours.
Check the verdict first, then review the differences and table rows for Infinix Smart 20 and Tecno Spark 40 Pro. Prioritize the specs, price range, condition, warranty and delivery details that affect how you plan to use this product category.
Before checkout, confirm live availability, selected variant, regional compatibility and included accessories on the product page. Similar model names can hide different storage, platform, display or bundle details, so use the table as a shortlist before opening the final product listing.
| Spec | Infinix Smart 20 | Tecno Spark 40 Pro |
|---|---|---|
| Available Ogabassey configurations | ||
| RAM / Storage variants | ||
| 4GB + 64GB; 4GB + 128GB |
| — |
| Official colours | Shadow Black, Polaris Titanium, Sunlike Orange, Cloudline Blue | — |
|---|
| Condition | New | — |
|---|
| Model | X6840B | — |
|---|
| Display | ||
|---|---|---|
| Screen size | 6.78 inches | — |
| Resolution | HD+ 720 x 1576 pixels | 1.5K AMOLED |
| Refresh rate | 45Hz / 60Hz / 90Hz / 120Hz | — |
| Display type | IPS a-Si LCD | — |
| Brightness | 560 nits typical, 700 nits HBM | — |
| Touch sampling | 120Hz at 60Hz, 180Hz at 90Hz, up to 240Hz at 120Hz | — |
| Display features | Punch-hole screen, Always-On Display and Dynamic Bar | — |
| Type | IPS a-Si LCD | AMOLED |
| Size | 6.78 inches | 6.78 inches |
| Peak Brightness | 700 nits | — |
| Refresh Rate | — | 120Hz |
| Performance and software | ||
|---|---|---|
| Processor | MediaTek Helio G81 Ultimate | — |
| CPU | Octa-core: 2x2.0GHz Cortex-A75 + 6x1.7GHz Cortex-A55 | — |
| GPU | Mali-G52 | — |
| Memory technology | eMMC storage + LPDDR4X memory | — |
| Expandable storage | microSD support up to 2TB | — |
| Operating system | XOS 16, powered by Android 16 | — |
| Camera | ||
|---|---|---|
| Rear camera | 8MP, f/2.0, autofocus | — |
| Front camera | 8MP, f/2.0, fixed focus | — |
| Flash | Rear dual flash | — |
| Video recording | Front and rear: 2K 30fps, 1080p 30fps and 720p 30fps | — |
| Camera modes | Video, AI Cam, Dual Video, Portrait, Time-Lapse, Super Night, Pro, Panorama and Documents | — |
| Battery and charging | ||
|---|---|---|
| Battery | 5200mAh typical | — |
| Charging | 10W charger, 15W supported | — |
| Reverse charging | Yes, 5W supported | — |
| Connectivity | ||
|---|---|---|
| Network | 4G / 3G / 2G | — |
| SIM | 2 nano SIMs + microSD | — |
| Wi-Fi | 802.11 a/b/g/n/ac | — |
| Bluetooth | Yes | — |
| USB | USB Type-C with OTG | — |
| Earphone | 3.5mm earphone jack | — |
| FM Radio | Yes | — |
| GPS | Yes | — |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac | — |
| Positioning | GPS navigation supported | — |
| NFC | No | No |
| Radio | — | No |
| Body, calls and sensors | ||
|---|---|---|
| Dimensions | 167.7 x 78.8 x 7.7 mm | — |
| Protection | IP64 dust and splash resistance | — |
| Calling features | Pure Voice calls and voiceprint noise reduction | — |
| Offline contact | UltraLink free offline contact, up to 1km per manufacturer | — |
| Fingerprint | Fingerprint sensor | — |
| Sensors | G-sensor, e-compass, software gyroscope, light sensor, proximity sensor, fingerprint sensor, motor and infrared blaster | — |
| Network | ||
|---|---|---|
| Technology | 4G / 3G / 2G | — |
| 5G Support | No | Yes |
| Body | ||
|---|---|---|
| Dimensions | 167.7 x 78.8 x 7.7 | — |
| Build | 7.7mm ultra-slim body | — |
| SIM | Dual SIM: 2 nano SIMs + microSD | — |
| Protection | IP64 | — |
| Weight | — | 185g |
| Platform | ||
|---|---|---|
| OS | Android 16 | — |
| Chipset | MediaTek Helio G81 Ultimate | MediaTek Dimensity 7300 |
| CPU | Octa-core: 2x2.0GHz Cortex-A75 + 6x1.7GHz Cortex-A55 | — |
| GPU | Mali-G52 | — |
| Memory | ||
|---|---|---|
| Card Slot | microSD up to 2TB | No |
| Internal Storage | 128GB | 128GB |
| RAM | 4GB | 8GB |
| Main Camera | ||
|---|---|---|
| Single Camera | 8MP | 108MP |
| Features | 8MP, f/2.0, autofocus, rear dual flash; modes include AI Cam, Video, Dual Video, Portrait, Time-Lapse, Super Night, Pro, Panorama and Documents | — |
| Video | 2K 30fps, 1080p 30fps, 720p 30fps | — |
| Selfie Camera | ||
|---|---|---|
| Resolution | 8MP | 13MP |
| Features | 8MP, f/2.0, fixed focus | — |
| Video | 2K 30fps, 1080p 30fps, 720p 30fps | — |
| Sound | ||
|---|---|---|
| Loudspeaker | Yes (mono) | Yes (mono) |
| 3.5mm Jack | Yes | No |
| Features | ||
|---|---|---|
| Fingerprint | Fingerprint sensor | — |
| Sensors | G-sensor, e-compass, software gyroscope, light sensor, proximity sensor, fingerprint, motor, infrared blaster | — |
| Battery | ||
|---|---|---|
| Capacity | 5200mAh | 5000mAh |
| Wired Charging | 15W | 45W |
| Reverse Charging | Yes | — |
| Misc | ||
|---|---|---|
| Colors | Shadow Black, Polaris Titanium, Sunlike Orange, Cloudline Blue | Obsidian Black, Lucent White, Emerald Green |
| Models | X6840B | — |
| General | ||
|---|---|---|
| Product | — | TECNO Spark 40 Pro |
| this configuration | — | TECNO Spark 40 Pro 8GB/128GB |
| Model reference | — | SPARK 40 Pro |
| Display | — | 6.78-inch 1.5K 144Hz ultra-bright AMOLED display with up to 4500-nit peak brightness on TECNO official page |
| Processor | — | MediaTek Helio G100 Ultimate processor with Mali-G57 MC2 GPU details on TECNO official page |
| Memory and storage | — | 8GB RAM / 128GB storage |
| Software | — | Android/HiOS generation should be confirmed from the box; TECNO page emphasizes AI tools and long-fluency certification |
| Camera | — | 50MP main camera with AI imaging, FlashSnap and AI RAW-domain processing claims on TECNO official page |
| Battery and charging | — | 5200mAh battery with 45W Super Charging, 10W reverse wired charging and bypass charging on TECNO official page |
| Network and compatibility | — | Confirm Nigerian network bands, dual-SIM support and exact regional SKU before checkout. |
| Key features | — | IP64 dust/water resistance, Dolby Atmos dual speakers, FreeLink and wet-touch display features listed by TECNO |
| Condition | — | new |
| Buyer fit | — | Best for buyers who want a slim TECNO phone with higher-end display, stronger processor and 8GB RAM. |
Use the comparison table to choose based on the price, condition, and specs that matter most to you, especially ram / storage variants and official colours.
Infinix Smart 20 is the better fit if its advantages in ram / storage variants matter more than the savings on Tecno Spark 40 Pro; otherwise compare current prices and availability before buying.
Updated 14 July 2026: Spark 40 Pro is no longer recommended here as a 5G pick. Official TECNO specs make this a value-vs-design comparison against Spark Slim.
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