Infinix Smart 20 and Xiaomi 15T 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 Xiaomi 15T. 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 | Xiaomi 15T |
|---|---|---|
| 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 | 2772 x 1280 pixels |
| 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 display |
| Size | 6.78 inches | 6.83 inches |
| Peak Brightness | 700 nits | 3200 nits |
| Refresh Rate | — | 120Hz |
| Pixel Density | — | 447 ppi |
| 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 | 6.0 |
| USB | USB Type-C with OTG | USB Type-C |
| Earphone | 3.5mm earphone jack | — |
| FM Radio | Yes | — |
| GPS | Yes | — |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac | Wi-Fi 6E |
| Positioning | GPS navigation supported | GPS L1+L5, Galileo E1+E5a, GLONASS G1, Beidou, QZSS L1+L5, NavIC L5, A-GPS, electronic compass, wireless network, data network, MPE |
| NFC | No | Yes |
| 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 SA/NSA, 4G LTE, 3G WCDMA, 2G GSM |
| 5G Support | No | Yes |
| Body | ||
|---|---|---|
| Dimensions | 167.7 x 78.8 x 7.7 | 163.2 x 78.0 x 7.50 mm |
| Build | 7.7mm ultra-slim body | — |
| SIM | Dual SIM: 2 nano SIMs + microSD | Dual SIM: nano SIM + nano SIM or nano SIM + eSIM or eSIM + eSIM |
| Protection | IP64 | IP68 |
| Weight | — | 194g |
| Platform | ||
|---|---|---|
| OS | Android 16 | — |
| Chipset | MediaTek Helio G81 Ultimate | MediaTek Dimensity 8400-Ultra |
| CPU | Octa-core: 2x2.0GHz Cortex-A75 + 6x1.7GHz Cortex-A55 | — |
| GPU | Mali-G52 | Mali-G720 |
| Memory | ||
|---|---|---|
| Card Slot | microSD up to 2TB | No |
| Internal Storage | 128GB | 512GB |
| RAM | 4GB | 12GB |
| Main Camera | ||
|---|---|---|
| Single Camera | 8MP | — |
| 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 | 50MP Leica main camera with OIS, 50MP Leica telephoto camera, 12MP Leica ultra-wide camera |
| Video | 2K 30fps, 1080p 30fps, 720p 30fps | 4K at 30/60fps; 1080p at 30/60fps; 720p at 30fps |
| Triple Camera | — | 50MP |
| Selfie Camera | ||
|---|---|---|
| Resolution | 8MP | 32MP |
| Features | 8MP, f/2.0, fixed focus | 32MP in-display selfie camera, f/2.2 |
| Video | 2K 30fps, 1080p 30fps, 720p 30fps | 4K at 30fps; 1080p at 30/60fps; 720p at 30fps |
| Sound | ||
|---|---|---|
| Loudspeaker | Yes (mono) | Yes, with stereo speakers |
| 3.5mm Jack | Yes | — |
| Features | ||
|---|---|---|
| Fingerprint | Fingerprint sensor | In-screen fingerprint sensor |
| Sensors | G-sensor, e-compass, software gyroscope, light sensor, proximity sensor, fingerprint, motor, infrared blaster | Proximity sensor; ambient light sensor; accelerometer; gyroscope; electronic compass; IR blaster; flicker sensor; X-axis linear vibration motor; color temperature sensor |
| Battery | ||
|---|---|---|
| Capacity | 5200mAh | 5500mAh |
| Wired Charging | 15W | 67W |
| Reverse Charging | Yes | — |
| Misc | ||
|---|---|---|
| Colors | Shadow Black, Polaris Titanium, Sunlike Orange, Cloudline Blue | Black, Gray, Rose Gold |
| Models | X6840B | — |
| Available configurations | ||
|---|---|---|
| RAM and Storage | — | 12GB/512GB |
| Condition | — | new |
| Display and Design | ||
|---|---|---|
| Screen Size | — | 6.83-inch |
| Display Type | — | AMOLED display |
| Display Resolution | — | 2772 x 1280 pixels |
| Refresh Rate | — | Up to 120Hz |
| Peak Brightness | — | 3200 nits |
| Dimensions | — | 163.2 x 78.0 x 7.50 mm |
| Weight | — | 194g |
| Colours | — | Black, Gray, Rose Gold |
| Ingress Protection | — | IP68 |
| Performance, Memory and Battery | ||
|---|---|---|
| Processor | — | MediaTek Dimensity 8400-Ultra |
| Graphics | — | Mali-G720 |
| RAM and Storage Options | — | 12GB/512GB |
| Battery | — | 5500mAh typical |
| Charging | — | 67W charging |
| Operating System | — | Xiaomi HyperOS 2 |
| Camera and Connectivity | ||
|---|---|---|
| Rear Camera | — | 50MP Leica main camera with OIS, 50MP Leica telephoto camera, 12MP Leica ultra-wide camera |
| Front Camera | — | 32MP in-display selfie camera, f/2.2 |
| Rear Video | — | 4K at 30/60fps; 1080p at 30/60fps; 720p at 30fps |
| Front Video | — | 4K at 30fps; 1080p at 30/60fps; 720p at 30fps |
| Network | — | 5G SA/NSA, 4G LTE, 3G WCDMA, 2G GSM |
| SIM | — | Dual SIM: nano SIM + nano SIM or nano SIM + eSIM or eSIM + eSIM |
| Wireless | — | Wi-Fi 6E, Bluetooth 6.0 |
| USB | — | USB Type-C |
| Security | — | In-screen fingerprint sensor |
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 Xiaomi 15T; otherwise compare current prices and availability before buying.
The Xiaomi 17T Pro is stronger for battery, video, gaming and 1TB storage, but the Xiaomi 15T remains the better-value Ogabassey pick for most Nigerian buyers.
Redmi Note 15 Pro+ 5G is the stronger battery-and-value Xiaomi pick, while Xiaomi 15T is better for Leica cameras, faster storage and creator video. Compare price, stock, warranty and buyer fit in Nigeria.
Xiaomi 15T is the stronger 2026 all-rounder for battery, display size, storage speed and software runway, while Xiaomi 14T is the value pick if stock and warranty are confirmed.
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