iKall K21 Bluetooth vs Vivo T4x 5G
Quick Comparison
In terms of display resolution, Vivo T4x 5G has better resolution of 2408 x 1080 than iKall K21 Bluetooth which has resolution of 240 x 240.
| Name | iKall K21 Bluetooth | Vivo T4x 5G |
| Display | 1.57 in | 6.72 in |
|---|---|---|
| Battery | 380 mAh | 6500 mAh |
| Price | Rs. 819 | Rs. 14858 |
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Detailed Comparison
Price And Launch
The cost of iKall K21 Bluetooth is Rs. 819. The launch Date of the second phone is March 05, 2025. The cost of Vivo T4x 5G is Rs. 14858.
Display comparison
iKall K21 Bluetooth has screen size of 1.57 inches which falls short to Vivo T4x 5G's 6.72 inch screen. iKall K21 Bluetooth has TFT Screen type where as Vivo T4x 5G has LCD Screen type. Vivo's phone has display density of 393 PPI & iKall's phone has only 216 PPI display density. iKall K21 Bluetooth has 1:1 aspect ratio where as Vivo T4x 5G has 20:9 aspect ratio.
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Full Comparison
| Name | iKall K21 Bluetooth | Vivo T4x 5G |
| General | ||
| Model | K21 Bluetooth Smartwatch Mobile, K21 Bluetooth Smartwatch Mobile | V2437 |
| Sim Type | Single Sim, GSM | Dual Sim, GSM+GSM (Hybrid Slot) |
| Dual Sim | No | Yes |
| Sim Size | Nano+Nano SIM | |
| SAR | 0.99 W/kg (Head) 0.94 W/kg (Body) | |
| Device Type | Feature Phone | 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 | 76.3 x 165.7 x 8.09 mm | |
| Weight | 204 g | |
| Bezel less | No | |
| Colors | Marine Blue, Pronto Purple | |
| Display | ||
| Type | Color TFT Screen | Color LCD Screen (16.7 M) |
| Touch | Yes | Yes |
| Size | 1.57 inches, 240 x 240 pixels | 6.72 inches, 1080 x 2408 pixels, 120 Hz |
| Aspect Ratio | 1:1 | 20:9 |
| PPI | ~ 216 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 | 6 GB | |
| Expandable RAM | Upto 6 GB Extra Virtual RAM | |
| Storage | 128 GB | |
| Storage Type | UFS 3.1 | |
| Card Slot | Yes, upto 32 GB | No |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | No | Yes |
| 4G | Yes | |
| 5G | Yes | |
| 5G Bands | n1/n3/n5/n8/n28B/n40/n77/n78 | |
| VoLTE | Yes, Dual Stand-By | |
| Wifi | No | Yes, with wifi-hotspot |
| Wifi Version | Supports (2.4 GHz | 5.0 GHz), WiFi 6 | |
| Bluetooth | Yes | Yes, v5.4 |
| USB | Yes | Yes, USB-C v2.0 |
| USB Features | USB Tethering, USB on-the-go, USB Charging, USB Storage | |
| IR Blaster | Yes | |
| Performance | ||
| AnTuTu Score | 683,862 (Total) (v10) 198,203 (CPU) 146,819 (GPU) 185,400 (Memory) 153,440 (UX) | |
| Geekbench Score | 2,831 (Multi Core) (v6) 1,029 (Single Core) | |
| Extra | ||
| GPS | GPS, BEIDOU, GLONASS, GALILEO, QZSS | |
| Fingerprint Sensor | Yes, Side | |
| Face Unlock | 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 | No | 50 MP ƒ/1.8 (Wide Angle) 2 MP ƒ/2.4 (Depth Sensor) |
| Auto Focus | Yes | |
| Features | Night, Portrait, Photo, Video, 50MP, Pano, Documents, Slo-Mo, Timelapse, Pro, Live Photo | |
| Video Recording | No | 1080p @ 30 fps FHD, 4K @ 30 fps UHD |
| Flash | Yes, LED | |
| Front Camera | No | 8 MP ƒ/2.05 (Wide Angle) Punch Hole |
| Front Video Recording | 1080p | |
| Technical | ||
| OS | Android v15 | |
| Custom UI | Funtouch OS 15 | |
| Chipset | Mediatek Dimensity 7300 | |
| CPU | 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 | |
| Multimedia | ||
| Yes | ||
| Music | WAV, MP3, MP2, MP1, MIDI, Vorbis, APE, FLAC, AAC, OPUS | |
| Video | MP4, 3GP, MKV, FLV | |
| FM Radio | No | No |
| Document Reader | Yes | |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 380 mAh | 6500 mAh, Li-ion Battery |
| Fast Charging | Yes, 44W | |
| Reverse Charging | Yes | |