Karbonn X21 vs Vivo T4x 5G
Quick Comparison
Vivo T4x 5G has better RAM than Karbonn X21. In terms of display resolution, Vivo T4x 5G has better resolution of 2408 x 1080 than Karbonn X21 which has resolution of 720 x 1440. Vivo T4x 5G has more internal memory than Karbonn X21
| Name | Karbonn X21 | Vivo T4x 5G |
| RAM | 2 GB | 6 GB |
|---|---|---|
| Display | 5.45 in | 6.72 in |
| Internal Memory | 32 GB | 128 GB |
| Battery | 3000 mAh | 6500 mAh |
| Camera | 8 MP | 50 MP + 2 MP Dual |
| Price | Rs. 5989 | Rs. 13999 |
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Detailed Comparison
Price And Launch
The cost of Karbonn X21 is Rs. 5989. The launch Date of the second phone is March 05, 2025. The cost of Vivo T4x 5G is Rs. 13999.
Display comparison
Karbonn X21 has screen size of 5.45 inches which falls short to Vivo T4x 5G's 6.72 inch screen. Karbonn X21 has Screen type where as Vivo T4x 5G has LCD Screen type. Vivo's phone has display density of 393 PPI & Karbonn's phone has only 295 PPI display density. Karbonn X21 has 18:9 aspect ratio where as Vivo T4x 5G has 20:9 aspect ratio.
Memory comparison
Vivo T4x 5G's larger 6 GB RAM is better for playing games and all with respect to Karbonn X21's lower 2 GB RAM. Vivo T4x 5G has more Internal Memory (128 GB) than Karbonn X21 (32 GB).
Camera comparison
Vivo T4x 5G's 50 MP + 2 MP Dual Rear Camera outshines Karbonn X21's 8 MP Rear Camera in terms of resolution. Vivo T4x 5G will be better choice if you're looking to click lot of selfies as it has better 8 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 10 and the second one on 15 version.
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Full Comparison
| Name | Karbonn X21 | Vivo T4x 5G |
| General | ||
| Model | X21, X21 | V2437 |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM (Hybrid Slot) |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | Nano+Nano SIM |
| SAR | 0.99 W/kg (Head) 0.94 W/kg (Body) | |
| Device Type | Smartphone | Smartphone |
| Release Date | March 05, 2025 | |
| In The Box | Handset, Quick Start Guide, USB Cable, Charger, Eject Tool, Phone Case, Protective Film (Applied), Warranty Card | |
| Design | ||
| Dimensions | 71.8 x 147.5 x 9.35 mm | 76.3 x 165.7 x 8.09 mm |
| Weight | 160 g | 204 g |
| Bezel less | No | |
| Colors | Marine Blue, Pronto Purple | |
| Display | ||
| Type | Color HD+ FullView Display | Color LCD Screen (16.7 M) |
| Touch | Yes | Yes |
| Size | 5.45 inches, 1440 x 720 pixels | 6.72 inches, 1080 x 2408 pixels, 120 Hz |
| Aspect Ratio | 18:9 | 20:9 |
| PPI | ~ 295 PPI | ~ 393 PPI |
| Screen to Body Ratio | ~ 83% | |
| Features | Screen Brightness: 1050 Nits HBM (High Brightness Mode), Color Gamut: 83% NTSC | |
| Notch | Yes, Punch Hole | |
| Memory | ||
| RAM | 2 GB | 6 GB |
| Expandable RAM | Upto 6 GB Extra Virtual RAM | |
| Storage | 32 GB | 128 GB |
| Storage Type | UFS 3.1 | |
| Card Slot | Yes, upto 256 GB | No |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | |
| 5G Bands | n1/n3/n5/n8/n28B/n40/n77/n78 | |
| VoLTE | Yes | Yes, Dual Stand-By |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Wifi Version | Supports (2.4 GHz | 5.0 GHz), WiFi 6 | |
| Bluetooth | Yes, v4.2 | Yes, v5.4 |
| USB | Yes, microUSB | Yes, USB-C v2.0 |
| USB Features | USB on-the-go, USB Charging | USB Tethering, USB on-the-go, USB Charging, USB Storage |
| IR Blaster | Yes | |
| Extra | ||
| GPS | Yes | GPS, BEIDOU, GLONASS, GALILEO, QZSS |
| Fingerprint Sensor | Yes, Side | |
| Face Unlock | Yes | Yes |
| Sensors | Accelerometer, Ambient Light Sensor, E-Compass, Proximity Sensor, Gyroscope | |
| 3.5mm Headphone Jack | Yes | |
| Water Resistance | Yes | |
| IP Rating | IP64 | |
| Dust Resistant | Yes | |
| Extra Features | LPDDR4X RAM, Military-Grade Certified Durability, AI Erase, AI Photo Enhance, Quad Curved Design, Ultra Game Mode, 2 Years of Android Updates and 3 Years Of Security Updates, Antutu Score: 728K+, Circle to Search | |
| Camera | ||
| Rear Camera | 8 MP | 50 MP ƒ/1.8 (Wide Angle) 2 MP ƒ/2.4 (Depth Sensor) |
| Auto Focus | Yes | Yes |
| Features | Panorama, Burst Mode, Time Lapse, Face Beauty, Night Mode | Night, Portrait, Photo, Video, 50MP, Pano, Documents, Slo-Mo, Timelapse, Pro, Live Photo |
| Video Recording | 1080p | 1080p @ 30 fps FHD, 4K @ 30 fps UHD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 5 MP LED Flash | 8 MP ƒ/2.05 (Wide Angle) Punch Hole |
| Front Video Recording | 1080p | |
| Technical | ||
| OS | Android v10 | Android v15 |
| Custom UI | Funtouch OS 15 | |
| Chipset | Unisoc SC9863 | Mediatek Dimensity 7300 |
| CPU | 1.6 GHz, Octa Core Processor | 2.5 GHz, Octa Core Processor |
| Core Details | 4x2.5 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55 | |
| GPU | Adreno GPU | |
| Java | No | No |
| Browser | Yes | Yes |
| Multimedia | ||
| Yes | Yes | |
| Music | Yes | WAV, MP3, MP2, MP1, MIDI, Vorbis, APE, FLAC, AAC, OPUS |
| Video | Yes | MP4, 3GP, MKV, FLV |
| FM Radio | Yes | No |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Removable Battery | Non-Removable Battery |
| Size | 3000 mAh | 6500 mAh, Li-ion Battery |
| Fast Charging | Yes, 44W | |
| Reverse Charging | Yes | Yes |