Vivo iQOO Z8x vs Vivo Y21d

At a glance

Brand: vivo; vivo
Release date: August 2023, 2 years 9 months ago; November 2025, 6 months ago
Launch price: CN¥ 1,299.00 ($ 189.96); —
AnTuTu: 575.000 Antutu v10 Overall performance better than 75% of devices; 222.000 Antutu v10 Overall performance better than 56% of devices

Size: 6.64"; 6.68"
Resolution: 1080 x 2388 px FHD+; 720 x 1608 px HD+
Type: LCD; LCD IPS
Density: 395 ppi High Density; 264 ppi Medium Density
Aspect ratio: 20:9; 20:9
Features: Hole-punch Notch, SGS Certified, Refresh rate 120 Hz, Touch sampling rate 240 Hz, 1500:1 contrast ratio, HDR10, 2.5D curved glass screen, Capacitive, Multi-touch, Frameless; Hole-punch Notch, Refresh rate 90 Hz, Peak brightness - 1000 cd/m², Max brightness HBM - 1000 cd/m², TÜV Rheinland Eye Comfort Certification, DCI-P3, 83% NTSC, LED Notifications, 2.5D curved glass screen, Capacitive, Multi-touch, Frameless

Chipset: Qualcomm Snapdragon 6 Gen1; Unisoc Tiger T612 / T7225
CPU: 4x2.2GHz Cortex A78 + 4x1.80GHz Cortex A55; 2 x ARM Cortex A75 1.8Ghz + 6 x ARM Cortex A55 1.8Ghz
CPU type: Octa-Core; Octa-Core
Process: 4 nm; 12 nm
Frequency: 2.2 GHz; 1.8 GHz
GPU: Adreno 710; Mali-G57 MP1
RAM: 8 GB; 4 GB
RAM type: LPDDR4X RAM; LPDDR4X RAM
64-bit: Yes; Yes

Resolution: 50 Mpx; 50 Mpx
Aperture: ƒ/ 1.8; ƒ/ 1.8
Sensor: Samsung S5KJN1; —
Pixel size: 0.80 µm; —
Sensor size: 1/2.76"; —
Flash: LED; Dual LED
Optical stabilization: No; No
Slow motion: Yes, 120 fps; Yes, 120 fps
Features: 4K Video, Digital zoom, Dual camera, Digital image stabilization, Autofocus, Touch focus, Contrast detection autofocus (CDAF), Continuous shooting, Geotagging, Panorama, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer; Digital zoom, Dual camera, Autofocus, Touch focus, Phase detection autofocus (PDAF), Continuous shooting, Geotagging, Panorama, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer, Front Flash

Dimensions: 75.8 mm 164.6 mm 9.1 mm Print 3D Model; 77.0 mm 166.1 mm 8.4 mm Print 3D Model
Weight: 200 g; 209 g
Materials: Plastic; Plastic , Splash resistant design
Colors: Black Blue Silver; Green Coral
Usable surface: 85 %; 83 %
Water/dust resistance: —; IP68, IP69

Operating system: Android 13 Tiramisu OriginOS 3 (Android 13); Android 15 Funtouch OS 15 (Android 15)
Updates: OS updates: 3 years, Security updates: 3 years; —
Google services: Without 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 5.1 LELow energy consumption; Bluetooth 5.2 LELow energy consumption
Bluetooth profiles: A2DP (Advanced Audio Distribution Profile), EDR (Enhanced Data Rate), LE (Low Energy), APT-x, LDAC, SBC, AAC; A2DP (Advanced Audio Distribution Profile), EDR (Enhanced Data Rate), LE (Low Energy)
Wi-Fi: 802.11a , 802.11b , 802.11g , 802.11n , 802.11n 5GHz , 802.11ac, WiFi 6 (802.11ax); 802.11a , 802.11b , 802.11g , 802.11n , 802.11n 5GHz , 802.11ac
Wi-Fi features: Dual band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display; 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, QZSS, Galileo, BeiDou (B1); GPS, A-GPS, GLONASS, Beidou, QZSS, Galileo

5G: n1 (2100), n3 (1800), n5 (850), n8 (900), n28a (700), n38 (2600), n40 (2300), n41 (2500), n77 (3700), n78 (3500); —
4G LTE: B1 (2100), B3 (1800), B5 (850), B8 (900), B28a (700), B34 (TDD 2100), B38 (TDD 2600), B39 (TDD 1900), B40 (TDD 2300), B41 (TDD 2500); B1 (2100), B3 (1800), B5 (850), B7 (2600), B8 (900), B20 (800), B28b (700), B28a (700), B38 (TDD 2600), B40 (TDD 2300), B41 (TDD 2500)
3G: B1 (2100), B5 (850), B8 (900); B1 (2100), B5 (850), B8 (900)
2G: CDMA BC0 (800), B3 (1800), B5 (850), B8 (900); B3 (1800), B5 (850), B8 (900)