Infinix Smart 20 and Samsung Galaxy S25 Ultra 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 Samsung Galaxy S25 Ultra. 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 | Samsung Galaxy S25 Ultra |
|---|---|---|
| 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 | 3120 x 1440 |
| 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 | Dynamic AMOLED 2X |
| Size | 6.78 inches | 6.9 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 | 5.4 |
| USB | USB Type-C with OTG | USB Type-C, USB 3.2 Gen 1 |
| Earphone | 3.5mm earphone jack | — |
| FM Radio | Yes | — |
| GPS | Yes | — |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac | Wi-Fi 7, 802.11a/b/g/n/ac/ax/be, 2.4GHz/5GHz/6GHz |
| Positioning | GPS navigation supported | GPS, Glonass, Beidou, Galileo, QZSS |
| 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, LTE |
| 5G Support | No | Yes |
| Body | ||
|---|---|---|
| Dimensions | 167.7 x 78.8 x 7.7 | 162.8 x 77.6 x 8.2 |
| Build | 7.7mm ultra-slim body | — |
| SIM | Dual SIM: 2 nano SIMs + microSD | Dual SIM: Nano-SIM and eSIM options |
| Protection | IP64 | IP68 |
| Weight | — | 218g |
| Platform | ||
|---|---|---|
| OS | Android 16 | Android 15 |
| Chipset | MediaTek Helio G81 Ultimate | Snapdragon 8 Elite for Galaxy |
| CPU | Octa-core: 2x2.0GHz Cortex-A75 + 6x1.7GHz Cortex-A55 | Octa-Core |
| GPU | Mali-G52 | — |
| Memory | ||
|---|---|---|
| Card Slot | microSD up to 2TB | — |
| Internal Storage | 128GB | 256GB |
| 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 | 200MP wide + 50MP ultra-wide + 50MP telephoto + 10MP telephoto, OIS listed by Samsung |
| Video | 2K 30fps, 1080p 30fps, 720p 30fps | UHD 8K video recording |
| Quad Camera | — | 200MP |
| Selfie Camera | ||
|---|---|---|
| Resolution | 8MP | 12MP |
| Features | 8MP, f/2.0, fixed focus | 12MP front camera, F2.2, autofocus |
| Video | 2K 30fps, 1080p 30fps, 720p 30fps | — |
| Sound | ||
|---|---|---|
| Loudspeaker | Yes (mono) | Yes, with stereo speakers |
| 3.5mm Jack | Yes | No |
| Features | ||
|---|---|---|
| Fingerprint | Fingerprint sensor | Fingerprint sensor |
| Sensors | G-sensor, e-compass, software gyroscope, light sensor, proximity sensor, fingerprint, motor, infrared blaster | Accelerometer, barometer, fingerprint sensor, gyro, geomagnetic, hall, light, proximity |
| Battery | ||
|---|---|---|
| Capacity | 5200mAh | 5000mAh |
| Wired Charging | 15W | 45W |
| Reverse Charging | Yes | Yes |
| Misc | ||
|---|---|---|
| Colors | Shadow Black, Polaris Titanium, Sunlike Orange, Cloudline Blue | Titanium Silver Blue |
| Models | X6840B | — |
| Performance | ||
|---|---|---|
| Processor | — | Snapdragon 8 Elite for Galaxy |
| CPU | — | Octa-core CPU with 4.47GHz and 3.5GHz clusters |
| Memory | — | 12GB RAM |
| Storage configuration | — | available configurations include 256GB, 512GB and 1TB; the selected configuration uses the 256GB Titanium Silver Blue open-box variant |
| Display and design | ||
|---|---|---|
| Display | — | 6.9-inch Dynamic AMOLED 2X main display |
| Resolution | — | 3120 x 1440 Quad HD+ |
| Refresh rate | — | 120Hz maximum refresh rate |
| Size and weight | — | 162.8 x 77.6 x 8.2mm, 218g, Titanium Silver Blue |
| Cameras | ||
|---|---|---|
| Rear camera | — | 200MP + 50MP + 50MP + 10MP quad rear camera system |
| Front camera | — | 12MP front camera |
| Video | — | UHD 8K video recording |
| Stabilization | — | Optical image stabilization listed on the rear camera system |
| Connectivity and buyer notes | ||
|---|---|---|
| Wireless | — | 5G, LTE, Wi-Fi 7, Bluetooth 5.4, NFC and UWB |
| Battery | — | 5000mAh typical battery |
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 Samsung Galaxy S25 Ultra; otherwise compare current prices and availability before buying.
A practical Nigeria-focused guide to the Samsung Galaxy Z Flip 4 at ₦450,000, covering battery limits, camera fit, performance, open-box checks, warranty questions and safer Samsung alternatives.
Updated for 2026: whether the open-box Samsung Galaxy S23 FE at ₦400,000 still makes sense in Nigeria, including One UI 9 outlook, battery, camera, warranty checks and Ogabassey alternatives.
A buyer-focused Samsung Galaxy S24 FE guide for Nigeria covering ₦480,000 value, battery, charging, camera, warranty checks and Ogabassey alternatives.
Compare price, specs, condition, and buying fit for Google Pixel 10 Pro Fold and Infinix Smart 20.
Compare price, specs, condition, and buying fit for Google Pixel 10 Pro and Infinix Smart 20.
Compare price, specs, condition, and buying fit for Google Pixel 10 Pro XL and Infinix Smart 20.
Compare price, specs, condition, and buying fit for Google Pixel 10 Pro Fold and Samsung Galaxy S25 Ultra.
Compare price, specs, condition, and buying fit for Google Pixel 10 Pro and Samsung Galaxy S25 Ultra.
Compare price, specs, condition, and buying fit for Google Pixel 10 Pro XL and Samsung Galaxy S25 Ultra.