Samsung Galaxy M17 vs Samsung Galaxy S21 Ultra 5G
Side-by-side specs and price comparison for buyers in Algeria.
Samsung Galaxy M17
Samsung Galaxy S21 Ultra 5G
Quick Verdict
Who wins each category, side by side.
Better price
Samsung Galaxy M17
Faster chip
Even
Bigger battery
Even
Faster charging
Even
Higher-resolution camera
Samsung Galaxy S21 Ultra 5G
Better display
Samsung Galaxy S21 Ultra 5G
Lighter body
Samsung Galaxy M17
Best value for money
Even
Full specs comparison
Display
| Spec | Samsung Galaxy M17 | Samsung Galaxy S21 Ultra 5G |
|---|---|---|
| Size (inches) | 6.7 | 6.8 |
| Panel Type | AMOLED | AMOLED |
| Resolution Height | 2340 | 3200 |
| Resolution Width | 1080 | 1440 |
| Refresh Rate | 90 | 120 |
| Peak Brightness | 1100 | 1500 |
| PPI | 385 | 515 |
| Glass Type | Corning Gorilla Glass Victus | Corning Gorilla Glass Victus |
| Screen-to-body | 86 | 89.8 |
Platform
| Spec | Samsung Galaxy M17 | Samsung Galaxy S21 Ultra 5G |
|---|---|---|
| CPU | Octa-core (2x2.4 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55) | Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - InternationalOcta-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) - USA/China |
| GPU | Mali-G68 MP2 | Mali-G78 MP14 - InternationalAdreno 660 - USA/China |
| Chipset Name | Exynos 1330 | Exynos 2100 - InternationalQualcomm SM8350 Snapdragon 888 5G (5 nm) |
| Process (nm) | 5 | 5 |
| OS Name | Android | Android |
| UI Skin | One UI 7 | One UI 6.1 |
| OS Version | 15 | 11 |
Memory
| Spec | Samsung Galaxy M17 | Samsung Galaxy S21 Ultra 5G |
|---|---|---|
| Card Slot | microSDXC (uses shared SIM slot) | No |
| Variants | 128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM | 128GB 8GB RAM, 128GB 12GB RAM, 256GB 12GB RAM, 256GB 16GB RAM, 512GB 12GB RAM, 512GB 16GB RAM |
Main Camera
| Spec | Samsung Galaxy M17 | Samsung Galaxy S21 Ultra 5G |
|---|---|---|
| Video | 1080p@30fps, gyro-EIS | 8K@24fps, 4K@30/60fps, 1080p@30/60/120/240fps, HDR10 + , stereo sound rec., gyro-EIS |
| Features | LED flash, panorama, HDR | Laser AF, LED flash, auto-HDR, panorama |
| Count | 3 | 4 |
| Macro | 2 MP, (macro) | — |
| periscope telephoto | — | 10 MP, f/4.9, 240mm, (periscope telephoto) |
| Telephoto | — | 10 MP, f/2.4, 72mm, (telephoto) |
| ultrawide | 5 MP, f/2.2, (ultrawide) | 12 MP, f/2.2, 13mm, (ultrawide) |
| Wide | 50 MP, f/1.8, (wide) | 108 MP, f/1.8, 24mm, (wide) |
Selfie Camera
| Spec | Samsung Galaxy M17 | Samsung Galaxy S21 Ultra 5G |
|---|---|---|
| Video | 1080p@30fps | 4K@30/60fps, 1080p@30fps |
| Features | — | HDR |
| Count | 1 | 1 |
| Lens | 13 MP, f/2, (wide) | 40 MP, f/2.2, 26mm, (wide) |
Battery
| Spec | Samsung Galaxy M17 | Samsung Galaxy S21 Ultra 5G |
|---|---|---|
| Capacity (mAh) | 5000 | 5000 |
| Chemistry | — | Li-Ion |
| Wired Charging (W) | 25 | 25 |
| Wireless Charging (W) | — | 15 |
Body
| Spec | Samsung Galaxy M17 | Samsung Galaxy S21 Ultra 5G |
|---|---|---|
| Build | Glass front (Gorilla Glass Victus), plastic back, plastic frame | Glass front (Gorilla Glass Victus), glass back (Gorilla Glass Victus), aluminum frame |
| SIM | Nano-SIM + Nano-SIM | Nano-SIM + eSIMNano-SIM + Nano-SIM + eSIM (max 2 at a time) |
| Height (mm) | 164.4 | 165.1 |
| Thickness (mm) | 7.5 | 8.9 |
| Weight (g) | 192 | 227 |
| Width (mm) | 77.9 | 75.6 |
Launch
| Spec | Samsung Galaxy M17 | Samsung Galaxy S21 Ultra 5G |
|---|---|---|
| Announced | 2025, October 10 | 2021, January 14 |
| Status | Available. Released 2025, October 13 | Available. Released 2021, January 29 |
Network
| Spec | Samsung Galaxy M17 | Samsung Galaxy S21 Ultra 5G |
|---|---|---|
| 2G Bands | GSM 850, 900, 1800, 1900 | GSM 850, 900, 1800, 1900 |
| 3G Bands | HSDPA 850, 900, 1700(AWS), 1900, 2100 | HSDPA 850, 900, 1700(AWS), 1900, 2100 |
| 4G Bands | 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 38, 40, 41, 66 | 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 38, 39, 40, 41, 46, 48, 66, 71 - SM-G998U1 |
| 5G Bands | 1, 3, 5, 7, 8, 28, 40, 41, 66, 77, 78 SA/NSA/Sub6 | 2, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - SM-G998U1 |
| Speed | HSPA, LTE, 5G | HSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/200 Mbps, 5G (5 + Gbps DL) |
| Technology | GSM, HSPA, LTE, 5G | GSM, CDMA, HSPA, EVDO, LTE, 5G |
Connectivity
| Spec | Samsung Galaxy M17 | Samsung Galaxy S21 Ultra 5G |
|---|---|---|
| Bluetooth | 5.3 | 5.2 |
| NFC | Yes | Yes |
| Positioning | GPS, GALILEO, GLONASS, BDS, QZSS | GPS, GLONASS, BDS, GALILEO |
| Radio | No | FM radio (Snapdragon model only; market/operator dependent) |
| USB Type | Type-C | Type-C |
| USB Version | 2.0 | 3.2 |
| Wi-Fi | Wi-Fi 5 | Wi-Fi 6E |
Sound
| Spec | Samsung Galaxy M17 | Samsung Galaxy S21 Ultra 5G |
|---|---|---|
| 3.5mm Jack | No | No |
| Loudspeaker | Yes | Yes, with stereo speakers |
Features
| Spec | Samsung Galaxy M17 | Samsung Galaxy S21 Ultra 5G |
|---|---|---|
| Sensors | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass | Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer |
Buying advice for Algeria
Both Samsung Galaxy M17 and Samsung Galaxy S21 Ultra 5G are sold in Algeria, but they fit different priorities.
Samsung Galaxy M17 is 14% cheaper at 60,000 DZD versus 70,000 DZD for the Samsung Galaxy S21 Ultra 5G, leaving room for accessories or a longer screen-protection plan.
Samsung Galaxy S21 Ultra 5G reaches a higher main-sensor resolution at 108 MP, which helps with crops and lower-light photos.
Above 60,000 DZD, prioritise screen quality, fast charging, and a clear software-update commitment.
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