At a glance
All specificationsAvailable parts (1)
Part matching for vivo X21 UD
The 1 listings in Available parts above are indexed for vivo X21 UD only. Each SKU is checked against model code X21UD A before dispatch.
- On the handset, open Settings › About Phone and note the model number.
- Compare it with the model code in the device header at the top of this page (e.g. X21UD A).
- If it matches X21UD A, the listings in Available parts above are verified for your variant. Tier and warranty are shown on each card.
Device specifications
Hardware reference for vivo X21 UD. Spare parts are matched by model code — not by display size alone.
| Display | 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 | Internal | 6GB RAM |
| Card slot | microSDXC (uses shared SIM slot) | |
Similar models in X series
Latest vivo models in X series — release year and model code shown.
Common Questions
On your device, open Settings → About Phone and check the model number (e.g. X21UD A). Match it against the codes shown above so you're ordering parts for your exact regional variant — not a look-alike.
RepairFully offers three tiers for most parts: Compatible (aftermarket part, verified device fit), Premium (available on OLED display models only), and Original Grade (verified original part with source traceability). Each tier is clearly labelled with pricing on the part page so you can pick what fits your repair.
No — each X series model has unique displays, batteries, and connectors. Select your exact vivo X21 UD to guarantee fit.