Samsung Galaxy S25 Ultra vs Karbonn X21
Quick Comparison
Samsung Galaxy S25 Ultra has better RAM than Karbonn X21. In terms of display resolution, Samsung Galaxy S25 Ultra has better resolution of 3120 x 1440 than Karbonn X21 which has resolution of 720 x 1440. Samsung Galaxy S25 Ultra has more internal memory than Karbonn X21
| Name | Samsung Galaxy S25 Ultra | Karbonn X21 |
| RAM | 12 GB | 2 GB |
|---|---|---|
| Display | 6.9 in | 5.45 in |
| Internal Memory | 256 GB | 32 GB |
| Battery | 5000 mAh | 3000 mAh |
| Camera | 200 MP Quad | 8 MP |
| Price | Rs. 129999 | Rs. 5989 |
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Detailed Comparison
Price And Launch
The launch Date of the first phone is January 22, 2025. The Expected cost of Samsung Galaxy S25 Ultra is Rs. 129999. The cost of Karbonn X21 is Rs. 5989.
Display comparison
Karbonn X21 has screen size of 5.45 inches which falls short to Samsung Galaxy S25 Ultra's 6.9 inch screen. Samsung Galaxy S25 Ultra has LTPO AMOLED Screen type where as Karbonn X21 has Screen type. Samsung's phone has display density of 498 PPI & Karbonn's phone has only 295 PPI display density. Samsung Galaxy S25 Ultra has 20.5:9 aspect ratio where as Karbonn X21 has 18:9 aspect ratio.
Memory comparison
Samsung Galaxy S25 Ultra's larger 12 GB RAM is better for playing games and all with respect to Karbonn X21's lower 2 GB RAM. Samsung Galaxy S25 Ultra has more Internal Memory (256 GB) than Karbonn X21 (32 GB).
Camera comparison
Samsung Galaxy S25 Ultra's 200 MP Quad Rear Camera outclasses Karbonn X21's 8 MP 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 12 MP Front Camera in comparison to Karbonn X21's 5 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 | Karbonn X21 |
| General | ||
| Model | SM-S938B, SM-S938B/DS, SM-S938U, SM-S938U1, SM-S938W, SM-S938N, SM-S9380, SM-S938E, SM-S938E/DS | X21, X21 |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | eSIM+Nano SIM | Nano+Nano SIM |
| Device Type | Smartphone | Smartphone |
| Release Date | January 22, 2025 | |
| Design | ||
| Dimensions | 77.6 x 162.8 x 8.2 mm | 71.8 x 147.5 x 9.35 mm |
| Weight | 218 g | 160 g |
| Bezel less | No | |
| Colors | Titanium Silverblue, Titanium Black, Titanium Whitesilver, Titanium Gray | |
| Display | ||
| Type | Color LTPO AMOLED Screen (1B Colors) | Color HD+ FullView Display |
| Touch | Yes | Yes |
| Size | 6.9 inches, 1440 x 3120 pixels, 120 Hz | 5.45 inches, 1440 x 720 pixels |
| Aspect Ratio | 20.5:9 | 18:9 |
| PPI | ~ 498 PPI | ~ 295 PPI |
| Screen to Body Ratio | ~ 92.5% | |
| Glass Type | Corning Gorilla Armor 2 | |
| Features | HDR10+, 2600 nits (peak) | |
| Notch | Yes, Punch Hole | |
| Curved Display | No | |
| Memory | ||
| RAM | 12 GB | 2 GB |
| Storage | 256 GB | 32 GB |
| Storage Type | UFS 4.0 | |
| Card Slot | No | Yes, upto 256 GB |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | |
| 5G Bands | TDD Sub6: N38(2600), N40(2300), N41(2500), N77(3700), N78(3500), FDD Sub6: N1(2100), N2(1900), N3(1800), N5(850), N7(2600), N8(900), N12(700), N20(800), N25(1900), N26(850), N28(700), N66(AWS-3) | |
| VoLTE | Yes, Dual Stand-By | Yes |
| Vo5G | Yes | |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Wifi Version | Wi-Fi 7, 802.11a/b/g/n/ac/ax/be 2.4GHz+5GHz+6GHz, EHT320, MIMO, 4096-QAM | |
| Bluetooth | Yes, v5.4 | Yes, v4.2 |
| USB | Yes, USB-C v3.2 | Yes, microUSB |
| USB Features | USB Tethering, USB on-the-go, USB Charging | USB on-the-go, USB Charging |
| Extra | ||
| GPS | Yes with A-GPS, Glonass, Beidou, Galileo, QZSS | Yes |
| Fingerprint Sensor | Yes, In Display | |
| Face Unlock | Yes | Yes |
| Sensors | Accelerometer, Barometer, Gyro Sensor, Geomagnetic Sensor, Hall Sensor, Light Sensor, Proximity Sensor | |
| 3.5mm Headphone Jack | No | Yes |
| NFC | Yes | |
| Water Resistance | Yes, 1.5 m upto 30 min | |
| IP Rating | IP68 | |
| Dust Resistant | Yes | |
| Extra Features | Photo Assist, Notes Assist, Drawing Assist, Circle to Search, Google Gemini (AI Mobile), 7 Years of Major OS Updates and 7 Years of Security Updates, Titanium Frame, Samsung Care+, Samsung Health, Samsung Wallet, S Pen Included | |
| Camera | ||
| Rear Camera | 200 MP ƒ/1.7 (Wide Angle) 24mm (wide), 1/1.3", 0.6µm, multi-directional PDAF, OIS 10 MP ƒ/2.4 (Telephoto) 67mm (telephoto), 1/3.52", 1.12µm, PDAF, OIS, 3x optical zoom 50 MP ƒ/3.4 (Telephoto) 111mm (periscope telephoto), 1/2.52", 0.7µm, PDAF, OIS, 5x optical zoom 50 MP ƒ/1.9 (Ultra Wide) 120˚ (ultrawide), 0.7µm, dual pixel PDAF, Super Steady video | 8 MP |
| Auto Focus | Yes | Yes |
| Features | HDR, Panorama | Panorama, Burst Mode, Time Lapse, Face Beauty, Night Mode |
| Video Recording | 8K @ 24/30 fps UHD, 4K @ 60 fps UHD | 1080p |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 12 MP ƒ/2.2 (Wide Angle) Punch Hole, Screen Flash | 5 MP LED Flash |
| Front Video Recording | 4K @ 60 fps UHD, 1080p @ 60 fps FHD | |
| Technical | ||
| OS | Android v15 | Android v10 |
| Custom UI | One UI 7 | |
| Chipset | Qualcomm Snapdragon 8Elite | Unisoc SC9863 |
| CPU | 4.47 GHz, Octa Core Processor | 1.6 GHz, Octa Core Processor |
| Core Details | 2x4.47 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M | |
| GPU | Adreno 830 | |
| Java | No | No |
| Browser | Yes | Yes |
| Multimedia | ||
| Yes | Yes | |
| Music | Yes | Yes |
| Video | Yes | Yes |
| FM Radio | No | Yes |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Removable Battery |
| Size | 5000 mAh, Li-ion Battery | 3000 mAh |
| Fast Charging | Yes, 45W Fast Charging | |
| Wireless Charging | Yes, 25W | |
| Reverse Charging | Yes, 10W | Yes |
| Reverse Wireless Charging | Yes, 4.5 | |
| Video Playback Time | 31 hours | |