New Release Updated: Mar 2026

Vivo X21 UD

$619 (Expected Price)

Reviewed by the MobGadgets Tech Team

We analyze specs, compare pricing, and aggregate real-world data to bring you unbiased mobile reviews. Learn how we test.

Display 6.28" AMOLED

Processor Snapdragon 660

Battery 3200mAh

RAM & Storage 128GB storage, microSDXC

Full Specs

Should you buy the Vivo X21 UD?

Reasons to Buy

Massive The Vivo X21 UD comes with a 3200mAh battery, which is a decent capacity for a smartphone. In terms of battery life, the phone offers a satisfactory performance. With moderate usage, the phone can easily last a full day. However, heavy usage might require a mid-day top-up. The battery optimization features help in maximizing the battery life by managing background processes and power-hungry apps. The phone also supports fast charging, which allows for quick recharges when needed. Unfortunately, there is no wireless charging option available on this device. Overall, the battery performance of the Vivo X21 UD is reliable, offering a good balance between power efficiency and usage. Users can expect a satisfactory battery backup and decent charging speeds with this device. battery life
Large 6.7" display for media
Excellent value at $619

Reasons to Avoid

May be bulky due to large battery
Average camera performance in low light

Full Specifications

Network Technology: GSM / CDMA / HSPA / LTE

Launch Announced: 2018, March. Released 2018, March Status: Discontinued

Body Dimensions: 154.5 x 74.8 x 7.4 mm (6.08 x 2.94 x 0.29 in) Weight: 156.2 g (5.50 oz) Build: Glass front (Gorilla Glass 3), aluminum back, aluminum frame SIM: Nano-SIM + Nano-SIM

Display Type: Super AMOLED Size: 6.28 inches, 98.4 cm² (~85.2% screen-to-body ratio) Resolution: 1080 x 2280 pixels, 19:9 ratio (~402 ppi density) Protection: Corning Gorilla Glass 3

Platform OS: Android 8.1 (Oreo), Funtouch 4 Chipset: Qualcomm SDM660 Snapdragon 660 (14 nm) CPU: Octa-core (4x2.2 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver) GPU: Adreno 512

Memory Card slot - microSDXC (uses shared SIM slot) Internal: 128GB 6GB RAM
- : eMMC 5.1

Main Camera Dual: 12 MP, f/1.8, 1/2.55", 1.4µm, dual pixel PDAF
5 MP, f/2.4, (depth) Features: LED flash, HDR, panorama Video: 1080p@30fps

Selfie camera Single: 12 MP, f/2.0, (wide), 1/2.8", 1.28µm Video: 1080p@30fps

Sound Loudspeaker : Yes 3.5mm jack : Yes
- : 32-bit/192kHz Hi-Res audio

Comms WLAN: Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct Bluetooth: 5.0, A2DP, LE Positioning: GPS, GLONASS NFC: No Radio: FM radio USB: microUSB 2.0, OTG

Features Sensors: Fingerprint (under display, optical), accelerometer, proximity, compass

Battery Type: Li-Ion 3200 mAh, non-removable Charging: 18W wired

Misc Colors: Black, Ruby Red Models: X21UD A Price: About 550 EUR

Frequently Asked Questions

With its Dimensity 6300 chipset and 6GB of RAM, it handles everyday tasks and moderate gaming efficiently, though extremely graphic-intensive games may require lower settings.

Yes, to complement its massive The Vivo X21 UD comes with a 3200mAh battery, which is a decent capacity for a smartphone. In terms of battery life, the phone offers a satisfactory performance. With moderate usage, the phone can easily last a full day. However, heavy usage might require a mid-day top-up. The battery optimization features help in maximizing the battery life by managing background processes and power-hungry apps. The phone also supports fast charging, which allows for quick recharges when needed. Unfortunately, there is no wireless charging option available on this device. Overall, the battery performance of the Vivo X21 UD is reliable, offering a good balance between power efficiency and usage. Users can expect a satisfactory battery backup and decent charging speeds with this device. battery, it features standard fast charging capabilities to get you back up and running quickly.