Vivo X21 UD vs Tesla Pi Phone
Quick Comparison
Tesla Pi Phone has better RAM than Vivo X21 UD. In terms of display resolution, Tesla Pi Phone has better resolution of 2448 x 1080 than Vivo X21 UD which has resolution of 2280 x 1080. Tesla Pi Phone has more internal memory than Vivo X21 UD
| Name | Vivo X21 UD | Tesla Pi Phone |
| RAM | 6 GB | 16 GB |
|---|---|---|
| Display | 6.28 in | 6.73 in |
| Internal Memory | 128 GB | 512 GB |
| Battery | 3200 mAh | 5000 mAh |
| Camera | 12 MP + 5 MP Dual | 50 MP + 50 MP + 50 MP Triple |
| Price | Rs. 29990 | Rs. 69999 |
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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 March 19, 2025 (Expected). The Expected cost of Tesla Pi Phone is Rs. 69999.
Display comparison
Vivo X21 UD has screen size of 6.28 inches which falls short to Tesla Pi Phone's 6.73 inch screen. Vivo X21 UD has Super AMOLED Screen type where as Tesla Pi Phone has AMOLED Screen type. Vivo's phone has display density of 402 PPI & Tesla's phone has only 395 PPI display density. Vivo X21 UD has 19:9 aspect ratio where as Tesla Pi Phone has 20.4:9 aspect ratio.
Memory comparison
Tesla Pi Phone's larger 16 GB RAM is better for playing games and all with respect to Vivo X21 UD's lower 6 GB RAM. Tesla Pi Phone has more Internal Memory (512 GB) than Vivo X21 UD (128 GB).
Camera comparison
Tesla Pi Phone's 50 MP + 50 MP + 50 MP Triple Rear Camera outclasses Vivo X21 UD's 12 MP + 5 MP Dual Rear Camera in terms of resolution. Tesla Pi Phone will be better choice if you're looking to click lot of selfies as it has better 32 MP Front Camera in comparison to Vivo X21 UD's 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 13 version.
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Full Comparison
| Name | Vivo X21 UD | Tesla Pi Phone |
| General | ||
| Model | Pi Phone | |
| Sim Type | Dual Sim, GSM+GSM (Hybrid Slot) | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | Nano+Nano SIM |
| Device Type | Smartphone | Smartphone |
| Release Date | March 19, 2025 (Expected) | |
| Design | ||
| Dimensions | 74.8 x 154.5 x 7.4 mm | |
| Weight | 156 g | |
| Display | ||
| Type | Color Super AMOLED Screen (16M colors Colors) | Color AMOLED Screen (1B Colors) |
| Touch | Yes | Yes, 1220 Hz Touch Sampling Rate |
| Size | 6.28 inches, 1080 x 2280 pixels | 6.73 inches, 1080 x 2448 pixels, 165 Hz |
| Aspect Ratio | 19:9 | 20.4:9 |
| PPI | ~ 402 PPI | ~ 395 PPI |
| Glass Type | Gorilla Glass Victus | |
| Features | 1220Hz Touch sampling rate ,1800 nits Maximum Brightness, HDR10 and HDR10+ certified | |
| Memory | ||
| RAM | 6 GB | 16 GB |
| Storage | 128 GB | 512 GB |
| Storage Type | UFS 3.1 | |
| Card Slot | Yes, (Hybrid Slot) | No |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | |
| 5G Bands | N1,N2,N3,N5,N7,N8 ,N12,N18,N20,N26,N28,N38,N40,N41,N48,N77,N78,N79 | |
| VoLTE | Yes | Yes, Dual Stand-By |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Wifi Version | WiFi 6E (802.11a/b/g/n/ac/ax, 2x2 MIMO) | |
| Bluetooth | Yes | Yes, v5.3 |
| USB | Yes, microUSB | Yes, USB-C v3.1 |
| USB Features | USB on-the-go | USB on-the-go, USB Charging |
| Extra | ||
| GPS | Yes, with A-GPS Support | GNSS support GPS (L1/L5), Glonass (L1), Galileo (E1/E5a), BeiDou(B1i/B1c/B2a), QZSS (L1/L5) and NavIC |
| Fingerprint Sensor | Yes | Yes, In Display |
| Face Unlock | Yes | |
| Sensors | Accelerometer, Compass | Accelerometer, E-compass, Gyroscope, Proximity Sensor, Ambient-light Sensor, Ultrasonic Sensors for AirTrigger 6 and Grip Press |
| 3.5mm Headphone Jack | Yes | Yes |
| NFC | Yes | |
| Water Resistance | Yes | |
| IP Rating | IP52 | |
| Dust Resistant | Yes | |
| Extra Features | 360 degree CPU Cooling Technology | |
| Camera | ||
| Rear Camera | 12 MP + 5 MP | 50 MP ƒ/1.9 (Wide Angle) 50 MP ƒ/2.2 (Ultra Wide) 50 MP (Macro) Macro |
| Camera Sensor | IMX766 | |
| Auto Focus | Yes | Yes |
| Features | Face detection, Geo tagging, Panorama, Touch to focus | Digital Zoom, Auto Flash, Face detection, Touch to focus, HDR10+ |
| Video Recording | 1080p @ 30 fps FHD | 8K @ 24 fps UHD, 4K @ 60 fps UHD, 1080p |
| Flash | Yes, Dual LED | Yes, LED |
| Front Camera | 12 MP | 32 MP |
| Front Video Recording | 1080p | |
| Technical | ||
| OS | Android v8.1 (Oreo) | Android v13 |
| Custom UI | Tesla UI | |
| Chipset | Qualcomm Snapdragon 660 | |
| CPU | 2.2 GHz, Octa Core Processor | Octa Core Processor |
| GPU | Adreno 512 | |
| 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 | Yes |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 3200 mAh, Li-ion Battery | 5000 mAh, Li-Po Battery |
| Fast Charging | Yes, 120W Fast Charging | |