Realme P3x 5G (8GB RAM + 128GB) vs Vivo Y21 5G
Here you can compare Realme P3x 5G (8GB RAM + 128GB) and Vivo Y21 5G. Comparing Realme P3x 5G (8GB RAM + 128GB) vs Vivo Y21 5G on Smartprix enables you to check their respective specs scores and unique features. It would potentially help you understand how Realme P3x 5G (8GB RAM + 128GB) stands against Vivo Y21 5G and which one should you buy The current lowest price found for Realme P3x 5G (8GB RAM + 128GB) is ₹13,999 and for Vivo Y21 5G is ₹23,579. The details of both of these products were last updated on Sep 29, 2026.
| Specification | Realme P3x 5G (8GB RAM + 128GB) | Vivo Y21 5G |
|---|---|---|
| RAM | 8 GB | 4 GB |
| Battery | 6000 mAh | 6500 mAh, Li-ion Battery |
| OS | Android v15 | Android v16 |
| Internal Memory | 128 GB | 128 GB |
| Display | 6.72 inches, 1080 x 2400 pixels, 120 Hz | 6.74 inches, 720 x 1600 pixels, 120 Hz |
| Price | ₹13,999 | ₹23,579 |
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Overview
| Specs Score | 57 / 100 | 58 / 100 Better Specs |
| Display Resolution | 1080 x 2400 pixels Better Resolution | 720 x 1600 pixels |
| Screen To Body Ratio | ~ 92.65% Less Bezels | ~ 85% |
| RAM | 8 GB More RAM | 4 GB |
| Front Camera | 8 MP Better Front Camera Resolution | 5 MP |
| Weight | 197 g Lighter | 209 g |
| Thickness | 7.94 mm Slimmer | 8.4 mm |
| Battery | 6000 mAh | 6500 mAh Bigger Battery |
| Unique Features | No No No | 3.5mm Audio Jack NFC IR Blaster |
General
| Country of Origin | India | |
| Model | RMX3944 | Y21 5G |
| 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 | February 18, 2025 | March 26, 2026 |
| In The Box | 1 Realme p3x 5G, 1 USB Type-C Cable, 1 45W Adapter, 1 Protect Case, 1 SIM Card Needle, 1 Screen Protect Film, 1 Quick Guide, |
Design
| Dimensions | 76.22 x 165.7 x 7.94 mm | 77.1 x 167.4 x 8.4 mm |
| Weight | 197 g | 209 g |
| Bezel less | No | |
| Colors | Midnight Blue, Stellar Pink, and Lunar Silver | Champagne Gold, Midnight Blue |
Display
| Type | Color LCD Screen (1B Colors) | Color IPS Screen |
| Touch | Yes, 180 Hz Touch Sampling Rate | Yes |
| Size | 6.72 inches, 1080 x 2400 pixels, 120 Hz | 6.74 inches, 720 x 1600 pixels, 120 Hz |
| Aspect Ratio | 20:9 | 20:9 |
| PPI | ~ 392 PPI | ~ 260 PPI |
| Screen to Body Ratio | ~ 92.65% | ~ 85% |
| Glass Type | Armorshell Glass | |
| Brightness | 1200 nits Peak Brightness | |
| Features | Brightness: 580nit (Typical), 690nit (HBM), Colour Gamut: 82% NTSC, Contrast Ratio: 1500: 1, Brightness Adjustment: 4096 Level,,Peak Brightness：950nit | |
| Notch | Yes, Punch Hole | Yes, Water Drop Notch |
Memory
| RAM | 8 GB | 4 GB |
| Expandable RAM | Upto 4 GB Extra Virtual RAM | |
| Storage | 128 GB | 128 GB |
| Storage Type | eMMC 5.1 | |
| Card Slot | Yes, (Hybrid Slot) | Yes |
Connectivity
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | Yes |
| 5G Bands | 5G NR: n1/3/5/8/28B/40/41/77/78 | n1/n3/n5/n8/n28B/n38/n40/n77/n78 |
| VoLTE | Yes, Dual Stand-By | Yes |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Wifi Version | Support 2.4/5GHz Wi-Fi, Support 802.11 a/b/g/n/ac | 2.4 GHz / 5 GHz |
| Bluetooth | Yes, v5.3 | Yes |
| USB | Yes, USB-C v2.0 | Yes, USB-C v2.0 |
| USB Features | USB Tethering, USB on-the-go, USB Charging, USB Storage | USB Tethering, USB on-the-go, USB Charging, USB Storage |
| IR Blaster | No | Yes |
Extra
| GPS | Beidou(B1I), GPS(L1), GLONASS(G1), Galileo(E1), QZSS(L1) | Yes, with A-GPS, GLONASS, GALILEO, BDS, QZSS |
| Fingerprint Sensor | Yes, Side | Yes, Side |
| Face Unlock | Yes | Yes |
| Sensors | Geomagnetic Sensor, Proximity Sensor, Light Sensor, Acceleration Sensor, Gyroscope | Accelerometer, Proximity, Compass |
| 3.5mm Headphone Jack | Yes | |
| NFC | Yes | |
| AI Features | AI Creation, AI Photo Enhance, AI Documents, AI Screen Translation, Circle to Search | |
| Water Resistance | Yes | Yes |
| IP Rating | IP69 | IP65 |
| Dust Resistant | Yes | Yes |
| Extra Features | Premium Vegan Leather Design, AI Clear Face, 200% Super Volume Mode, Military Grade Shock Resistance,Super Linear Speaker Supports, OReality Audio Effect, Dual-mic Noise Cancellation, Hi-Res Audio Certification, Up to 18GB Dynamic RAM |
Camera
| Rear Camera | 50 MP ƒ/1.8 (Wide Angle) OMNIVISION OV50D, Resolution 8192*6144, Equivalent Focal Length: 27mm, FOV: 75.5°, Lens: 5P 2 MP ƒ/2.4 (Depth Sensor) Equivalent Focal Length：22mm, FOV：88.8°, Lens：3P | 50 MP ƒ/1.8 (Wide Angle) 0.08 MP |
| Camera Sensor | OMNIVISION OV50D | |
| Auto Focus | Yes | Yes |
| Features | Photo, Video, Night View, Street Shot, Professional, Panorama, Portrait, Time-lapse Photography, Slow Motion, Hypertext, High Pixel, Axis Shift, Movie, Multi Scene Video, Underwater Camera, Night View, Video, Photo, Portrait, Panorama, Time-lapse Photography, Multi-scene Video | |
| Video Recording | 1080p @ 30 fps FHD, 4K @ 30 fps UHD | 1080p @ 30 fps FHD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 8 MP ƒ/2 (Wide Angle) Punch Hole, Screen Flash | 5 MP ƒ/2.2 (Wide Angle) |
| Front Video Recording | 1080p @ 30 fps FHD | |
| Front Camera Features | Photo, Video, Portrait, Night, Panorama, Multi Video, Timelapse Video | Photo, Night, Portrait, Video, Live Photo |
Technical
| OS | Android v15 | Android v16 |
| Custom UI | Realme UI 6 | OriginOS 6 |
| Chipset | Mediatek Dimensity 6400 | Mediatek Dimensity 6300 |
| CPU | 2.5 GHz, Octa Core Processor | 2.4 GHz, Octa Core Processor |
| Core Details | 2X Arm Cortex-A76@2.4GHz & 6X Arm Cortex-A55@2.0GHz | |
| GPU | Mali-G615 MC2 | Mali-G57 MC2 |
| Java | No | No |
| Browser | Yes | Yes |
Multimedia
| Yes | Yes | |
| Music | MP3, AAC, APE, AMR, WAV, OGG, FLAC, WMA | Yes |
| Video | AVI, 3GP, MP4, WMV, MKV, MOV, ASF, FLV | Yes |
| FM Radio | No | No |
| Document Reader | Yes | Yes |
Battery
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 6000 mAh | 6500 mAh, Li-ion Battery |
| Fast Charging | Yes, 45W | Yes, 44W Fast Charging |
| Reverse Charging | Yes, 5W | Yes |
| Video Playback Time | 49 hours |
Discuss
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