vivo X21
The vivo X21 is a balanced everyday device, powered by the Qualcomm SDM660 Snapdragon 660 (14 nm), suited to light-to-moderate use (2018).
2018 · Lower-mid-range · Android 8.1 (Oreo)ⓘ Note: Scores are automatically calculated using available specifications and may not always perfectly reflect real-world performance or user experience.
✓︎ Pros
✓Sharp 402 PPI screen
✓6.28" OLED/AMOLED display with deep blacks and vibrant colours
✓Lightweight at 156.2g — easy to carry
✓3.5mm headphone jack for wired audio without adapters
⊗ Cons
✗Smaller 3,200 mAh battery — may need midday charging
✗Entry-level Qualcomm SDM660 Snapdragon 660 (14 nm) — struggles with demanding apps
✗12 MP main camera — basic quality, limited for photography enthusiasts
⚠️ Not ideal for
Heavy usage daysMobile gamingHeavy multitaskingPhotography
⚙️ Performance
Chipset
Qualcomm SDM660 Snapdragon 660 (14 nm)
Mid-range — handles daily tasks well
CPU
Octa-core (4x2.2 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
OS
Android 8.1 (Oreo), Funtouch 4
RAM
6GB
Fine for everyday apps
💻 Display
Sharpness
402 ppi
Sharp and comfortable to read
Panel
Super AMOLED
OLED: perfect blacks, vivid colours, power-efficient
📷 Camera
Main Camera
12 MP
Capable for everyday photos
🔋 Battery & Design
Battery
3,200 mAh
May need midday charging with heavy use
Type
Li-Ion 3200 mAh, non-removable
Weight
156.2g
Very light — comfortable for long use
Dimensions
154.5 x 74.8 x 7.4 mm (6.08 x 2.94 x 0.29 in)
Sensors
Fingerprint (rear-mounted), accelerometer, proximity, compass
Colors
Black, Aurora White, Ruby Red
