A78 vs vivo V21s: Which One Should You Buy?

A78 edges ahead with a BeastScore of 79.8/100 — but the right choice depends on what matters to you.

Head-to-head
Comparing 2 devicesSwipe ⇄
Oppo · 2023

A78

A78
80/ 100
Launch pricePrice on request
Vivo · 2022

vivo V21s

vivo V21s
80/ 100
Launch pricePrice on request
Head-to-head

A78 wins 4 of 6 categories

Here's exactly where each phone is stronger.

A78
A78
4 wins
vivo V21s
vivo V21s
2 wins
At a glance

Bigger shape = better phone.

SpeedCameraBatteryDisplayConnectivityValue
A78vivo V21s
Category winners

Scores out of 100. How we score

  • SpeedA78
    80
    79
  • CameraA78
    84
    80
  • VideoNot enough data
  • SelfieNot enough data
  • BatteryA78
    86
    75
  • Displayvivo V21s
    74
    84
  • ConnectivityA78
    65
    55
  • SecurityNot enough data
  • Valuevivo V21s
    68
    85
Key differences
  • A78 has the bigger battery5,000 mAh vs 4,000 mAh
  • vivo V21s has a smoother screen120 Hz vs 90 Hz
  • A78 has the bigger screen6.56" vs 6.44"
  • vivo V21s is lighter176 g vs 188 g
  • A78 has newer Bluetooth5.3 vs 5.1
See all specs ↓

Why buy each phone

Swipe ⇄
Reasons to buy A78
  • ✓Bigger 5,000 mAh battery (+1,000 mAh)
  • ✓50.1 MP main camera
  • ✓6.56" display at 90 Hz
Reasons to buy vivo V21s
  • ✓12 g lighter (176 g vs 188 g), easier to hold
  • ✓6.44" display at 120 Hz

Full specifications

Swipe ⇄
SpecificationA78vivo V21s
1. Display & Screen🏆 vivo V21s Wins Display
Screen typeIPS TFT LCDAMOLED, 90Hz, HDR10+, 500 nits (typ), 800 nits (HBM)
Screen Size6.56"6.44"
Resolution & Density720x1612 (269 ppi)FHD+ / LTPO AMOLED
Refresh Rate90 Hz120 Hz
BrightnessN/AN/A
Screen ProtectionNot listedNot listed
2. Platform & Performance🏆 A78 Wins Performance
Chipset / ProcessorDimensity 700 (7nm)Dimensity 800U
CPU CoresNot listedNot listed
GPU GraphicsMali-G57 MC2Not listed
Operating SystemAndroid 12Android 12
3. Memory & Storage
RAM Memory8 GB LPDDR8 GB LPDDR
Internal Storage128GB128 GB
Storage SpeedNot listedNot listed
Card SlotNoNo
4. Main Camera Optics🏆 A78 Wins Camera
Primary Camera50.1 MPundefined MP, Triple Camera System
Telephoto ZoomNone (digital zoom only)None (digital zoom only)
Ultrawide CameraN/AN/A
LiDAR / DepthNoneNone
5. Video
Main Camera Video
Not listed
Not listed
Front Video
Not listed
Not listed
6. Selfie Camera
Selfie Lens8 MPundefined MP
7. Body & Dimensions🏆 vivo V21s Lightest Chassis
Dimensions163.8 x 75.04 x 7.99 mm159.7 x 73.9 x 7.3 mm
Weight188 g176 g
Build MaterialsNot listedNot listed
SIM TypeNot listedNot listed
Water ResistanceNot listedNot listed
8. Battery & Charging🏆 A78 Wins Battery
Battery Capacity5,000 mAh4,000 mAh
Wired Fast Charging33W wired fast chargingFast charging
Wireless ChargingNot listedNot listed
Reverse ChargingNot listedNot listed
9. Sound & Audio
LoudspeakerNot listedNot listed
3.5mm Headphone JackNoNo
10. Connectivity
Wi-Fi StandardNot listedNot listed
BluetoothBluetooth 5.35.1, A2DP, LE
USB Port & SpeedUSB C reversibleUSB Type-C 2.0, OTG
NFCYesYes
11. Sensors & Security
SensorsNot listedNot listed
Satellite FeaturesNot listedNot listed
12. Colors & Overview
ColorsNot listedNot listed
Launch PricePrice on requestPrice on request
Our verdict

A78 wins — BeastScore 79.8/100

The A78 is the better pick for most people thanks to its bigger battery (5,000 mAh vs 4,000 mAh) and bigger screen (6.56" vs 6.44"). The vivo V21s is worth a look if you prefer its smoother screen (120 Hz vs 90 Hz).

Buy A78 if you want

Larger battery: 5,000 mAh vs 4,000 mAh

Buy vivo V21s if you want

Smoother display: 120 Hz vs 90 Hz · Lighter: 176 g vs 188 g (12 g less)

Common questions

Which is better: A78 or vivo V21s?

The A78 is the better pick for most people thanks to its bigger battery (5,000 mAh vs 4,000 mAh) and bigger screen (6.56" vs 6.44"). The vivo V21s is worth a look if you prefer its smoother screen (120 Hz vs 90 Hz). BeastScore: A78 79.8/100, vivo V21s 79.8/100.

What are the main battery and display differences between A78 and vivo V21s?

A78 has a 6.56-inch display and 5000 mAh battery. vivo V21s has a 6.44-inch display and 4000 mAh battery.

How do A78 and vivo V21s compare for speed?

A78 scores 80/100 for performance; vivo V21s scores 79/100.

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