Poco C81x vs Vivo Y21 5G

At a glance

Brand: POCO; vivo
Release date: April 2026, 1 months ago; March 2026, 2 months ago
AnTuTu: 308.681 Antutu v10 Overall performance better than 61% of devices; 409.000 Antutu v10 Overall performance better than 67% of devices

Size: 6.88"; 6.74"
Resolution: 720 x 1640 px HD+; 720 x 1600 px HD+
Type: LCD IPS; LCD IPS
Density: 260 ppi Medium Density; 260 ppi Medium Density
Aspect ratio: 21:9; 20:9
Features: Water Drop Notch, Refresh rate 120 Hz, Touch sampling rate 240 Hz, Brightnes 450 cd/m² (typ), 1500:1 contrast ratio, TÜV Rheinland Eye Comfort Certification, 2.5D curved glass screen, Capacitive, Multi-touch, Frameless, In-cell; Water Drop Notch, TUV Rheinland Low Blue Light, Refresh rate 120 Hz, Max brightness HBM - 1200 cd/m², 83% NTSC, Scratch resistant, 2.5D curved glass screen, Capacitive, Multi-touch, Frameless

Chipset: Unisoc Tiger T615 (T7250); MediaTek Dimensity 6300
CPU: 2 x ARM Cortex A75 1.8Ghz + 6 x ARM Cortex A55 1.6Ghz; 2x2.4 GHz ARM Cortex A76 +6x2.0 GHz ARM Cortex A55
CPU type: Octa-Core; Octa-Core
Process: 12 nm; 6 nm
Frequency: 1.8 GHz; 2.4 GHz
GPU: Mali-G57 MP1; Arm Mali-G57 MC2
RAM: 3 GB; 6 GB
RAM type: LPDDR4X RAM; LPDDR4X RAM
64-bit: Yes; Yes

Resolution: 13 Mpx; 50 Mpx
Aperture: ƒ/ 2.0; ƒ/ 1.8
Flash: LED; LED
Optical stabilization: No; No
Slow motion: No, 30 fps; No, 30 fps
Features: Digital zoom, Dual camera, Autofocus, Touch focus, Geotagging, Panorama, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer; Digital zoom, Dual camera, Digital image stabilization, Autofocus, Touch focus, Phase detection autofocus (PDAF), Geotagging, Panorama, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer

Dimensions: 77.8 mm 171.8 mm 8.3 mm Print 3D Model; 77.1 mm 167.4 mm 8.4 mm Print 3D Model
Weight: 193 g; 209 g
Materials: Plastic; Plastic
Colors: Black Cyan; Black Silver
Water/dust resistance: Splash resistant; IP65 , MIL-STD-810H
Usable surface: 84 %; 85 %
Drop resistance: —; Class A B C D E 270 drops without defects
Repairability: —; Class A B C D E

Operating system: Android 15 HyperOS 2.X (Android 15); Android 16 OriginOS 6 (Android 16)
Updates: OS updates: 4 years, Security updates: 6 years; OS updates: 5 years
Google services: With Google Mobile Services; With Google Mobile Services

SIM: Dual SIM Dual Standby (Nano SIM + Nano SIM); Dual SIM Dual Standby (Nano SIM + Nano SIM)
Bluetooth: Bluetooth 5.2; Bluetooth 5.4 LELow energy consumption
Bluetooth profiles: A2DP (Advanced Audio Distribution Profile); A2DP (Advanced Audio Distribution Profile), EDR (Enhanced Data Rate), HID (Human Interface Profile), LE (Low Energy)
Wi-Fi: 802.11a , 802.11b , 802.11g , 802.11n , 802.11ac; 802.11a , 802.11b , 802.11g , 802.11n , 802.11n 5GHz , 802.11ac
Wi-Fi features: Wi-Fi Hotspot; Dual band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display
USB: USB Type-C; USB Type-C
USB features: Charging, OTG; Charging, OTG
Navigation: GPS, A-GPS, GLONASS, Beidou, Galileo; GPS, A-GPS, GLONASS, Beidou, QZSS, Galileo

4G LTE: B1 (2100), B3 (1800), B5 (850), B8 (900), B28b (700), B28a (700), B40 (TDD 2300), B41 (TDD 2500); B1 (2100), B3 (1800), B4 (1700/2100 AWS 1), B5 (850), B7 (2600), B8 (900), B19 (800), B20 (800), B28b (700), B28a (700), B38 (TDD 2600), B40 (TDD 2300), B41 (TDD 2500), B66 (1700/2100), B71 (600)
3G: B1 (2100), B5 (850), B8 (900); B1 (2100), B4 (1700/2100 AWS A-F), B5 (850), B8 (900)
2G: B3 (1800), B5 (850), B8 (900); B3 (1800), B5 (850), B8 (900)
5G: —; n1 (2100), n3 (1800), n5 (850), n7 (2600), n8 (900), n20 (800), n28b (700), n28a (700), n38 (2600), n40 (2300), n41 (2500), n66 (1700), n71 (600), n77 (3700), n78 (3500)