Vivo X21 UD vs Samsung Galaxy S25 Ultra
Quick Comparison
Samsung Galaxy S25 Ultra has better RAM than Vivo X21 UD. In terms of display resolution, Samsung Galaxy S25 Ultra has better resolution of 3120 x 1440 than Vivo X21 UD which has resolution of 2280 x 1080. Samsung Galaxy S25 Ultra has more internal memory than Vivo X21 UD
| Name | Vivo X21 UD | Samsung Galaxy S25 Ultra |
| RAM | 6 GB | 12 GB |
|---|---|---|
| Display | 6.28 in | 6.9 in |
| Internal Memory | 128 GB | 256 GB |
| Battery | 3200 mAh | 5000 mAh |
| Camera | 12 MP + 5 MP Dual | 200 MP Quad |
| Price | Rs. 29990 | Rs. 129999 |
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Detailed Comparison
Price And Launch
The cost of Vivo X21 UD is Rs. 29990. The launch Date of the second phone is January 22, 2025. The cost of Samsung Galaxy S25 Ultra is Rs. 129999.
Display comparison
Vivo X21 UD has screen size of 6.28 inches which falls short to Samsung Galaxy S25 Ultra's 6.9 inch screen. Vivo X21 UD has Super AMOLED Screen type where as Samsung Galaxy S25 Ultra has LTPO AMOLED Screen type. Samsung's phone has display density of 498 PPI & Vivo's phone has only 402 PPI display density. Vivo X21 UD has 19:9 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 Vivo X21 UD's lower 6 GB RAM. Samsung Galaxy S25 Ultra has more Internal Memory (256 GB) than Vivo X21 UD (128 GB).
Camera comparison
Samsung Galaxy S25 Ultra's 200 MP Quad Rear Camera outclasses Vivo X21 UD's 12 MP + 5 MP Dual Rear Camera in terms of resolution. Both of them stand equal in terms of Front Camera Resolution as both have 12 MP Front Camera.
Technical comparison
Both the phones has Android Operating System but the first one runs on version 8.1 and the second one on 15 version.
Related Comparisons
Full Comparison
| Name | Vivo X21 UD | 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 (Hybrid Slot) | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | eSIM+Nano SIM |
| SAR | 1.26 W/kg (Head) 0.64 W/kg (Body) | |
| Device Type | Smartphone | Smartphone |
| Release Date | January 22, 2025 | |
| In The Box | Handset, Stylus Pen, Data Cable (Type C to C), Sim Ejection Pin | |
| Design | ||
| Dimensions | 74.8 x 154.5 x 7.4 mm | 77.6 x 162.8 x 8.2 mm |
| Weight | 156 g | 218 g |
| Bezel less | No | |
| Qwerty | No | |
| Colors | Titanium Silverblue, Titanium Black, Titanium Whitesilver, Titanium Gray | |
| Display | ||
| Type | Color Super AMOLED Screen (16M colors Colors) | Color LTPO AMOLED Screen (1B Colors) |
| Touch | Yes | Yes |
| Size | 6.28 inches, 1080 x 2280 pixels | 6.9 inches, 1440 x 3120 pixels, 120 Hz |
| Aspect Ratio | 19:9 | 19.5:9 |
| PPI | ~ 402 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 | 6 GB | 12 GB |
| Storage | 128 GB | 256 GB |
| Storage Type | UFS 4.0 | |
| Card Slot | Yes, (Hybrid Slot) | No |
| 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 | 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 | Yes, v5.4, A2DP, LE |
| USB | Yes, microUSB | Yes, USB-C v3.2 |
| USB Features | USB on-the-go | 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 | Yes, In Display |
| Face Unlock | Yes | |
| Sensors | Accelerometer, Compass | Accelerometer, Barometer, Gyro Sensor, Geomagnetic Sensor, Hall Sensor, Light Sensor, Proximity Sensor |
| 3.5mm Headphone Jack | Yes | No |
| 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, 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 | 12 MP + 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 |
| Auto Focus | Yes | Yes |
| Features | Face detection, Geo tagging, Panorama, Touch to focus | 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 | 1080p @ 30 fps FHD | 8K @ 24/30 fps UHD, 4K @ 120/30/60 fps UHD, 1080p @ 240/30/60 fps FHD |
| Flash | Yes, Dual LED | Yes, LED |
| Front Camera | 12 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 v8.1 (Oreo) | Android v15 |
| Custom UI | One UI 7 | |
| Chipset | Qualcomm Snapdragon 660 | Qualcomm Snapdragon 8 Elite |
| CPU | 2.2 GHz, Octa 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 | Adreno 512 | Adreno 830 |
| Java | Yes, via 3rd party | No |
| Browser | Yes, supports HTML | Yes |
| Multimedia | ||
| Supports | MMS | |
| Yes, with Push Email | Yes | |
| Music | MP3, WAV, eAAC+, FLAC | Yes |
| Video | MP4, H.264 | Yes |
| FM Radio | Yes | No |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 3200 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 | |
| Video Playback Time | 31 hours | |