Samsung Galaxy S25 Ultra vs Samsung Galaxy S21 Ultra 5G (12GB RAM + 128GB)
Quick Comparison
Both Samsung Galaxy S25 Ultra and Samsung Galaxy S21 Ultra 5G (12GB RAM + 128GB) comes with same RAM. In terms of display resolution, Samsung Galaxy S25 Ultra has better resolution of 3440 x 1800 than Samsung Galaxy S21 Ultra 5G (12GB RAM + 128GB) which has resolution of 3200 x 1440. Samsung Galaxy S25 Ultra has more internal memory than Samsung Galaxy S21 Ultra 5G (12GB RAM + 128GB)
| Name | Samsung Galaxy S25 Ultra | Samsung Galaxy S21 Ultra 5G (12GB RAM + 128GB) |
| RAM | 12 GB | 12 GB |
|---|---|---|
| Display | 6.9 in | 6.8 in |
| Internal Memory | 256 GB | 128 GB |
| Battery | 5500 mAh | 5000 mAh |
| Camera | 200 MP Quad | 108 MP Quad |
| Price | Rs. 124990 | Rs. 101999 |
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Detailed Comparison
Price And Launch
The launch Date of the first phone is expected to be January 17, 2025 (Expected). The Expected cost of Samsung Galaxy S25 Ultra is Rs. 124990. The launch Date of the second phone is January 14, 2021. The Expected cost of Samsung Galaxy S21 Ultra 5G (12GB RAM + 128GB) is Rs. 101999.
Display comparison
Samsung Galaxy S25 Ultra has larger screen size of 6.9 inches in comparison to Samsung Galaxy S21 Ultra 5G (12GB RAM + 128GB)'s 6.8 inch screen. Both the phones have Screen Type. Samsung Galaxy S25 Ultra has display density of 566 PPI & Samsung Galaxy S21 Ultra 5G (12GB RAM + 128GB) has only 515 PPI display density. Samsung Galaxy S25 Ultra has 20.5:9 aspect ratio where as Samsung Galaxy S21 Ultra 5G (12GB RAM + 128GB) has 20:9 aspect ratio.
Memory comparison
Both mobiles come with 12 GB RAM Samsung Galaxy S25 Ultra has more Internal Memory (256 GB) than Samsung Galaxy S21 Ultra 5G (12GB RAM + 128GB) (128 GB).
Camera comparison
Samsung Galaxy S25 Ultra's 200 MP Quad Rear Camera outclasses Samsung Galaxy S21 Ultra 5G (12GB RAM + 128GB)'s 108 MP Quad Rear Camera in terms of resolution. Samsung Galaxy S25 Ultra will be better choice if you're looking to click lot of selfies as it has better 50 MP Front Camera in comparison to Samsung Galaxy S21 Ultra 5G (12GB RAM + 128GB)'s 40 MP Front Camera.
Technical comparison
Both the phones has Android Operating System but the first one runs on version 15 and the second one on 10 version.
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Full Comparison
| Name | Samsung Galaxy S25 Ultra | Samsung Galaxy S21 Ultra 5G (12GB RAM + 128GB) |
| General | ||
| Model | Galaxy S25 Ultra | Galaxy S21 Ultra 5G |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | Nano+Nano SIM |
| Device Type | Smartphone | Smartphone |
| Release Date | January 17, 2025 (Expected) | January 14, 2021 |
| Design | ||
| Dimensions | 77.6 x 162.8 x 8.2 mm | 75.6 x 165.1 x 8.9 mm |
| Weight | 219 g | 227 g |
| Display | ||
| Type | Color Dynamic AMOLED 2X (1B Colors) | Color Dynamic AMOLED 2X (16M Colors) |
| Touch | Yes | Yes |
| Size | 6.9 inches, 1800 x 3440 pixels, 144 Hz | 6.8 inches, 1440 x 3200 pixels, 120 Hz |
| Aspect Ratio | 20.5:9 | 20:9 |
| PPI | ~ 566 PPI | ~ 515 PPI |
| Screen to Body Ratio | ~ 89.8% | |
| Glass Type | Corning Gorilla Glass Victus Plus | Corning Gorilla Glass Victus |
| Features | Always-on Display, HDR10+, Curved Display | Always-on Display, HDR10+ |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
| Memory | ||
| RAM | 12 GB | 12 GB |
| Storage | 256 GB | 128 GB |
| Storage Type | UFS 4.0 | UFS 3.1 |
| Card Slot | No | No |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | Yes |
| VoLTE | Yes, Dual Stand-By | Yes, Dual Stand-By |
| Vo5G | Yes | |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Bluetooth | Yes, v5.3 | Yes, v5.2, A2DP, LE |
| USB | Yes, USB-C v3.2 | Yes, USB-C v3.2 |
| USB Features | USB Tethering, USB on-the-go, USB Charging | USB on-the-go, USB Charging |
| Extra | ||
| GPS | Yes with A-GPS, Glonass | Yes, with A-GPS, GLONASS, BDS, GALILEO |
| Fingerprint Sensor | Yes, In Display | Yes, In Display |
| Face Unlock | Yes | Yes |
| Sensors | Accelerometer, Proximity, Barometer | Accelerometer, Gyro, Proximity, Compass, Barometer |
| 3.5mm Headphone Jack | USB Type-C | No |
| NFC | Yes | |
| Water Resistance | Yes | Yes, 1.5 m upto 30 min |
| IP Rating | IP68 | |
| Dust Resistant | Yes | |
| Camera | ||
| Rear Camera | 200 MP ƒ/1.8 50 MP ƒ/2.2 (Ultra Wide) 50 MP ƒ/2.4 (Telephoto) 10 MP | 108 MP ƒ/1.8 10 MP ƒ/4.9 (Telephoto) 10 MP ƒ/2.4 (Telephoto) 12 MP ƒ/2.2 (Ultra Wide) |
| Auto Focus | Yes | Yes |
| Features | Digital Zoom, Auto Flash, Face detection, Touch to focus | Auto-HDR, Panorama |
| Video Recording | 4K, 1080p | 8K @ 24 fps UHD, 4K @ 30/60 fps UHD, 1080p @ 240/30/60 fps FHD, 720p @ 960 fps HD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 50 MP Punch Hole, Screen Flash | 40 MP ƒ/2.2 (Wide Angle) Punch Hole, Autofocus |
| Front Video Recording | 1080p | 4K @ 30/60 fps UHD, 1080p @ 30 fps FHD |
| Technical | ||
| OS | Android v15 | Android v10 |
| Custom UI | OneUI 7.1 | |
| Chipset | Qualcomm Snapdragon 8 Gen4 | Samsung Exynos 2100 |
| CPU | Octa Core Processor | 2.9 GHz, Octa Core Processor |
| Core Details | 1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55 | |
| GPU | Adreno GPU | Mali-G78 MP14 |
| Java | No | No |
| Browser | Yes | Yes |
| Multimedia | ||
| Yes | Yes | |
| Music | Yes | Yes |
| Video | Yes | Yes |
| FM Radio | Yes | No |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 5500 mAh, Li-Po Battery | 5000 mAh, Li-Po Battery |
| Fast Charging | Yes, 45W Fast Charging | Yes, 25W Fast Charging |
| Wireless Charging | Yes, 25W | Yes, 15W |
| Reverse Charging | Yes, 10W | Yes, 4.5W |