Findprix helps you compare the Poco M8x 6GB RAM, 128GB and Vivo Y21 5G 4GB RAM, 64GB in terms of price, specifications, user reviews, and more. Poco M8x 6GB RAM, 128GB is expected to launch in India on August 27, 2026, with a starting price of ₹22,999 Vivo Y21 5G 4GB RAM, 64GB is priced at ₹19,499. Here's a quick comparison.
| Product | Price | Processor | RAM | Storage | Display | Front Camera | Rear Camera | Battery | OS |
|---|---|---|---|---|---|---|---|---|---|
| Poco M8x | ₹22,999 | Qualcomm Snapdragon 4 Gen 5 | 4 nm | 6GB | LPDDR4X | 128GB | UFS 2.2 | 6.9 inches | HD+ | 8MP | 50MP | 7900 mAh | 33W | Android 16 | Hyper OS 3 |
| Vivo Y21 5G | ₹19,499 | MediaTek Dimensity 6300 | 6 nm | 4GB | LPDDR4X | 64GB | UFS 2.2 | 6.74 inches | HD+ | 5MP | 50MP + 0.08MP | 6500 mAh | 44W | Android 16 | OriginOS 6 |
₹22,999
Poco M8x
6GB RAM + 128GB
Upcoming 
₹19,499
Vivo Y21 5G
4GB RAM + 64GB
Prices
Poco M8x
Prices not available
Vivo Y21 5G
Amazon₹19,499Only ₹500 above the 3 weeks average of ₹18,999 — good deal.
Ratings
Poco M8x
Ratings not available
Vivo Y21 5G
1.0
(1)
General
| Feature | Poco M8x | Vivo Y21 5G |
|---|---|---|
| Device Type | Smartphone | Smartphone |
| Operating System | Android 16 | Android 16 |
| OS Updates | 4 Years | -- |
| Security Updates | 6 Years | -- |
| Custom UI | Hyper OS 3 | OriginOS 6 |
Design
| Feature | Poco M8x | Vivo Y21 5G |
|---|---|---|
| Dimensions | 170.12 x 78.43 x 8.8 mm | 167.4 x 77.1 x 8.39 mm |
| Weight | 232 g | 209 g |
| Water Resistance | Yes, IP64 | Yes, IP65 |
| Dust Resistance | Yes | Yes |
| Build Material | Back: Leather, Polycarbonate | Back: Plastic |
| Durability | -- | MIL-STD-810H compliant |
| Colours | Black, Blue, Leather Green | Champagne Gold, Midnight Blue |
Display
| Feature | Poco M8x | Vivo Y21 5G |
|---|---|---|
| Touch Screen | Yes | Yes |
| Touch Sampling Rate | 240 Hz | -- |
| Display Type | LCD | LCD |
| Brightness | -- | HBM: 1200 nits |
| Refresh Rate | 120 Hz | 120 Hz |
| Screen Size | 6.9 inches (17.53 cm), HD+ | 6.74 inches (17.12 cm), HD+ |
| Screen Resolution | 720 x 1600 pixels | 1600 x 720 pixels) |
| Aspect Ratio | 20:9 | 20:9 |
| Screen-to-Body Ratio | ~86.2% | ~85.0% |
| Pixel Density | ~254 ppi | ~260 ppi |
| HDR Support | Yes | -- |
| Screen Protection | Yes, Corning Gorilla Glass 7i | -- |
Rear Camera
| Feature | Poco M8x | Vivo Y21 5G |
|---|---|---|
| Camera Setup | Single | Dual |
| Primary | 50 MP (wide) f/1.8 aperture, 27mm focal length upto 10x digital zoom PDAF | 50 MP (wide) f/1.8 aperture |
| Secondary | -- | 0.08 MP f/3.0 aperture |
| OIS | No | -- |
| Autofocus | Yes | Yes |
| Flash | Yes, LED | Yes |
| Video Recording | 1080p @ 30 fps | 1080p @ 30 fps |
Front Camera
| Feature | Poco M8x | Vivo Y21 5G |
|---|---|---|
| Camera Setup | Single | Single |
| Primary | 8 MP (wide) f/2.05 aperture, 25mm focal length | 5 MP f/2.2 aperture |
| Video Recording | 1080p @ 30 fps | -- |
Performance
| Feature | Poco M8x | Vivo Y21 5G |
|---|---|---|
| RAM | 6 GB | 4 GB |
| RAM Type | LPDDR4X | LPDDR4X |
| Chipset | Qualcomm Snapdragon 4 Gen 5 | MediaTek Dimensity 6300 |
| Fabrication | 4 nm | 6 nm |
| GPU | Adreno 613 | Mali-G57 MC2 |
| CPU | Octa core 2x Cortex-A78 @ 2.4 GHz 6x Cortex-A55 @ 2.0 GHz | Octa core 2x Cortex A76 @ 2.4 GHz 6x Cortex A55 @ 2 GHz |
| Cooling System | Yes | -- |
| Cooling Area | 12439 mm² | -- |
Storage
| Feature | Poco M8x | Vivo Y21 5G |
|---|---|---|
| Internal Storage | 128 GB | 64 GB |
| Storage Type | UFS 2.2 | UFS 2.2 |
| Memory Card Slot | Yes, up to 2 TB | Yes, up to 2 TB |
Battery
| Feature | Poco M8x | Vivo Y21 5G |
|---|---|---|
| Battery | 7900 mAh | 6500 mAh |
| Battery Type | Li-Polymer | Li-ion |
| Wired Charging Speed | 33W | 44W |
| Wired Charging Time | -- | 50% charge in ~36 minutes |
| Wired Reverse Charging | Yes, 22.5W | Yes |
Network
| Feature | Poco M8x | Vivo Y21 5G |
|---|---|---|
| SIM | SIM 1: Nano SIM 2: Nano | SIM 1: Nano SIM 2: Nano (Hybrid slot) |
| Network Support | 5G, 4G, 3G, 2G | 5G, 4G, 3G, 2G |
| 5G Bands | n1, n3, n5, n8, n28, n40, n78 | n1, n3, n5, n8, n28B, n38, n40, n41, n77, n78 |
| 4G Bands | B1, B3, B5, B8, B28, B40, B41 | B1, B3, B5, B8, B28B, B38, B40, B41 |
| Navigation Support | GPS, GLONASS, Galileo, BDS | GPS, Glonass, Beidou, Galileo, QZSS |
| SAR | Head: 0.823 W/kg Body: 0.666 W/kg | Head: 1.14 W/kg Body: 1.12 W/kg |
Connectivity
| Feature | Poco M8x | Vivo Y21 5G |
|---|---|---|
| Bluetooth | Yes, v5.1 | Yes, v5.4 |
| Wi-Fi | Yes, Wi-Fi 5 (802.11 a/b/g/n/ac), MIMO | Yes, Wi-Fi 5 (802.11 a/b/g/n/ac), Dual Band (2 GHz + 5GHz) |
| USB | USB Type-C 2.0, OTG | USB Type-C 2.0, OTG |
| NFC | -- | No |
| Infrared port | Yes | -- |
Features
| Feature | Poco M8x | Vivo Y21 5G |
|---|---|---|
| Audio Jack | Yes, USB Type-C | Yes, 3.5 mm |
| FM Radio | Yes | Yes |
| Loud Speaker | Yes | Yes |
| Stereo Speakers | Yes | Yes |
| Fingerprint Sensor | Yes, Side | Yes, Side |
| Sensors | Accelerometer, Compass, Light Sensor, Proximity Sensor | Accelerometer, Compass, Light Sensor, Proximity Sensor |
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