Karbonn A21 Android vs Samsung Galaxy S25 Ultra
Quick Comparison
Samsung Galaxy S25 Ultra has better RAM than Karbonn A21 Android. In terms of display resolution, Samsung Galaxy S25 Ultra has better resolution of 3120 x 1440 than Karbonn A21 Android which has resolution of 800 x 480. Samsung Galaxy S25 Ultra has more internal memory than Karbonn A21 Android
| Name | Karbonn A21 Android | Samsung Galaxy S25 Ultra |
| RAM | 512 MB | 12 GB |
|---|---|---|
| Display | 4.5 in | 6.9 in |
| Internal Memory | 2.57 GB | 256 GB |
| Battery | 1800 mAh | 5000 mAh |
| Camera | 5 MP | 200 MP Quad |
| Price | Rs. 7199 | Rs. 129999 |
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Detailed Comparison
Price And Launch
The launch Date of the first phone is May, 2013. The cost of Karbonn A21 Android is Rs. 7199. The launch Date of the second phone is January 22, 2025. The cost of Samsung Galaxy S25 Ultra is Rs. 129999.
Display comparison
Samsung Galaxy S25 Ultra has larger screen size of 6.9 inches in comparison to Karbonn A21 Android's 4.5 inch screen. Karbonn A21 Android has TFT Screen type where as Samsung Galaxy S25 Ultra has LTPO AMOLED Screen type. Samsung's phone has display density of 498 PPI & Karbonn's phone has only 207 PPI display density. Karbonn A21 Android has 5:3 aspect ratio where as Samsung Galaxy S25 Ultra has 19.5:9 aspect ratio.
Memory comparison
Samsung Galaxy S25 Ultra's larger 12 GB RAM is better for playing games and all with respect to Karbonn A21 Android's lower 512 MB RAM. Samsung Galaxy S25 Ultra has more Internal Memory (256 GB) than Karbonn A21 Android (2.57 GB).
Camera comparison
Samsung Galaxy S25 Ultra's 200 MP Quad Rear Camera outclasses Karbonn A21 Android's 5 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 A21 Android's 1.3 MP Front Camera.
Technical comparison
Both the phones has Android Operating System but the first one runs on version 4.0 and the second one on 15 version.
Related Comparisons
Full Comparison
| Name | Karbonn A21 Android | Samsung Galaxy S25 Ultra |
| General | ||
| Country of Origin | India | |
| Model | SM-S938B, SM-S938B/DS, SM-S938U, SM-S938U1, SM-S938W, SM-S938N, SM-S9380, SM-S938E, SM-S938E/DS | |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | eSIM+Nano SIM | |
| SAR | 1.26 W/kg (Head) 0.64 W/kg (Body) | |
| Device Type | Smartphone | Smartphone |
| Release Date | May, 2013 | January 22, 2025 |
| In The Box | Handset, Stylus Pen, Data Cable (Type C to C), Sim Ejection Pin | |
| Design | ||
| Dimensions | 77.6 x 162.8 x 8.2 mm | |
| Weight | 218 g | |
| Bezel less | No | |
| Design Type | Classic (Candybar) | |
| Qwerty | No | |
| Colors | Titanium Silverblue, Titanium Black, Titanium Whitesilver, Titanium Gray | |
| Display | ||
| Type | Color TFT Screen (256K colors Colors) | Color LTPO AMOLED Screen (1B Colors) |
| Touch | Yes | Yes |
| Size | 4.5 inches, 480 x 800 pixels | 6.9 inches, 1440 x 3120 pixels, 120 Hz |
| Aspect Ratio | 5:3 | 19.5:9 |
| PPI | ~ 207 PPI | ~ 498 PPI |
| Screen to Body Ratio | ~ 92.5% | |
| Glass Type | Corning Gorilla Armor 2 | |
| Features | HDR10+, 2600 nits (Peak), Always-on Display | |
| Notch | Yes, Punch Hole | |
| Curved Display | No | |
| Memory | ||
| RAM | 512 MB | 12 GB |
| Storage | 2.57 GB | 256 GB |
| Storage Type | UFS 4 | |
| Card Slot | Yes, upto 32 GB | No |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes 7.2 Mbps Download | Yes |
| 4G | 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 | |
| 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, v2.1 | Yes, v5.4, A2DP, LE |
| USB | Yes, microUSB v2.0 | Yes, USB-C v3.2 |
| USB Features | USB Tethering | USB Tethering, USB on-the-go, USB Charging, USB Storage |
| Extra | ||
| GPS | Yes, with A-GPS Support | Yes with A-GPS, Glonass, Beidou, Galileo, QZSS |
| Fingerprint Sensor | Yes, In Display | |
| Face Unlock | Yes | |
| Sensors | Accelerometer | Accelerometer, Barometer, Gyro Sensor, Geomagnetic Sensor, Hall Sensor, Light Sensor, Proximity Sensor |
| 3.5mm Headphone Jack | Yes | No |
| NFC | Yes | |
| Extra | TV Out | |
| 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, Glass Front (Corning Gorilla Armor 2), Glass Back (Corning Gorilla Armor 2), Titanium Frame (Grade 5), Stereo Speakers, DisplayPort 1.2, Samsung DeX, Samsung Wireless DeX, Ultra Wideband (UWB) Support | |
| Camera | ||
| Rear Camera | 5 MP | 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 |
| OIS | Yes | |
| Auto Focus | Yes | Yes, Laser AF |
| Features | Face detection, Geo tagging | Bixby Vision, Dual Recording, Food, Hyperlapse, Night, Panorama, Photo, Portrait, Portrait Video, Pro, Pro Video, Single Take, Slow Motion, Video, Upto 100X Digital Zoom |
| Video Recording | 8K @ 24/30 fps UHD, 4K @ 120/30/60 fps UHD, 1080p @ 240/30/60 fps FHD | |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 1.3 MP | 12 MP ƒ/2.2 (Wide Angle) 26mm (Wide), 1/3.2", 1.12µm, Dual Pixel PDAF Punch Hole, Autofocus, Screen Flash |
| Front Video Recording | 4K @ 30/60 fps UHD, 1080p @ 30 fps FHD | |
| Technical | ||
| OS | Android v4.0 (ICS) | Android v15 |
| Custom UI | One UI 7 | |
| Chipset | Qualcomm Snapdragon 8 Elite | |
| CPU | 1.2 GHz, Dual Core Processor | 4.32 GHz, Octa Core Processor |
| Core Details | 2x4.47 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M | |
| GPU | 0 | Adreno 830 |
| Java | Yes, via 3rd party | No |
| Browser | Yes, supports HTML | Yes |
| Multimedia | ||
| Supports | MMS, Instant Messaging | |
| Yes, with Push Email | Yes | |
| Music | MP3, AAC, WMA, WAV | Yes |
| Video | MP4, WMV, H.264, H.263 | Yes |
| FM Radio | Yes | No |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Removable Battery | Non-Removable Battery |
| Size | 1800 mAh, Li-ion Battery | 5000 mAh, Li-ion Battery |
| Fast Charging | Yes, 45W Fast Charging PD3.0, 65% in 30 min | |
| Wireless Charging | Yes, 15W | |
| Reverse Charging | Yes, 10W | |
| Reverse Wireless Charging | Yes, 4.5W | |
| StandBy Time | 200 hours | |
| Talk Time | 5 hours | |
| Video Playback Time | 31 hours | |