Oppo Ace2 vs ZTE V821

Compare recorded specifications, size and practical differences.

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Key differences

Calculated from recorded specifications using minimum difference thresholds. These are differences, not an overall ranking. For three phones, numeric highlights compare the two extremes.

  • Weight

    V821: 66 g lighter

    Ace2:
    186 g
    V821:
    120 g
  • Width

    V821: 18.9 mm narrower

    Ace2:
    75.4 mm
    V821:
    56.5 mm
  • Chipset

    Ace2:
    Qualcomm SM8250 Snapdragon 865 (7 nm+)
    V821:
    Mediatek MT6516
  • Rear camera layout

    Ace2:
    Quad
    V821:
    Single
  • Depth

    Ace2: 3.2 mm thinner

    Ace2:
    8.6 mm
    V821:
    11.8 mm
  • Height

    V821: 44 mm shorter

    Ace2:
    160 mm
    V821:
    116 mm

Physical size

Relative size, not calibrated actual size. Front and side outlines share one scale and a bottom baseline. Generic outlines use recorded body dimensions, excluding camera bumps.

  1. 1. Ace2

    Height:
    160 mm +44 mm versus V821
    Width:
    75.4 mm +18.9 mm versus V821
    Depth:
    8.6 mm
  2. 2. V821

    Height:
    116 mm
    Width:
    56.5 mm
    Depth:
    11.8 mm +3.2 mm versus Ace2

Weight

Bars start at zero and share a scale within this chart.

  1. 1. Ace2

    186 g

    +66 g versus V821

  2. 2. V821

    120 g

Screen size

Approximate rectangular screens calculated from recorded diagonal and aspect ratio at one relative scale. Rounded corners and cutouts are not subtracted. These are not phone outlines or calibrated actual sizes.

At least two phones need compatible screen dimensions for a drawing.

  1. 1. Ace2

    Screen diagonal:
    6.55 in
    Aspect ratio (height:width):
    20:9
    Approximate rectangular screen area:
    103.6 cm²
  2. 2. V821

    V821: Screen geometry unavailable or conflicting.

Memory variants

Each row compares the same storage capacity. Cells show recorded RAM alternatives, not combined maxima. Not recorded does not mean unavailable in every market.

Recorded RAM for Ace2, V821, compared at the same storage capacity.
StorageAce2V821
128 GB 8 GB RAM Unknown
256 GB 8 / 12 GB RAM Alternative RAM configurations Unknown
V821: Original memory entry

256 MB

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. Ace2

NFC:
Yes
Headphone jack:
No
Memory card support:
No

2. V821

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated slot)

Battery capacity

Capacity is not battery life. No endurance test is implied.

At least two unambiguous positive capacity values are needed for a chart. Original entries remain in the specifications.

Specifications

Open a section for more detail. On narrow screens, swipe sideways or use Left/Right arrow keys while the table is focused. Unknown means missing data, not No. Recorded zero values are shown as recorded.

1. Ace22. V821

Everyday essentials
Everyday essentials — specifications for Ace2, V821.
SpecificationAce2V821
Dimensions (HxWxD)
  • 160 Х 75.4 Х 8.6 mm
  • 116 Х 56.5 Х 11.8 mm
Weight
  • 186 g
  • 120 g
Technology
  • AMOLED
  • TFT
Screen size
  • 6.55" inch
  • 0" inch
Screen resolution
  • 1080 x 2400 px
  • 320 x 240 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128GB 8GB RAM
  • 256GB 8GB RAM
  • 256GB 12GB RAM
  • 256 MB
Memory card support
  • No
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 4000 mAh
  • Non-removable Li-Po
  • 0 mAh,
Operating system OS
  • Android 10.0; ColorOS 7.1
  • Android 2.2 (Froyo)
Chipset
  • Qualcomm SM8250 Snapdragon 865 (7 nm+)
  • Mediatek MT6516
NFC
  • Yes
Unknown
Headphone jack
  • No
  • Yes
Display
Display — specifications for Ace2, V821.
SpecificationAce2V821
Touchscreen
  • capacitive touchscreen
  • resistive touchscreen
Display colors
  • 16M
  • 65K
Screen area
  • 103.6 cm2
Unknown
Screen format
  • 20:9 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 85.9%
Unknown
PPI /points per inch/
  • 402 PPI
  • 0 PPI
Screen protection
  • Corning Gorilla Glass 5
Unknown
Camera and Video
Camera and Video — specifications for Ace2, V821.
SpecificationAce2V821
Rear camera, main
  • 48 MP
  • Quad
  • 2 MP
  • Single
Camera specs
  • 48 MP
  • f/1.7
  • 26mm (wide)
  • 1/2.0''
  • 0.8µm
  • PDAF -8 MP
  • f/2.2
  • 13mm (ultrawide)
  • 1/4.0''
  • 1.12µm
  • AF -2 MP B/W
  • (depth) -2 MP
  • (depth)
  • 2 MP
  • AF
Functions
  • HDR
Unknown
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 16 MP
  • Single
  • 0 MP,
Specifications
  • 16 MP
  • f/2.4
  • 29mm (wide)
  • 1/3.1''
  • 1.0µm
Unknown
Performance
Performance — specifications for Ace2, V821.
SpecificationAce2V821
Processor CPU
  • Octa-core (1x2.84 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.8 GHz Kryo 585)
  • 416 MHz
Graphics processor GPU
  • Adreno 650
Unknown
General specs
General specs — specifications for Ace2, V821.
SpecificationAce2V821
Release date
  • 2020
  • April 13
  • 2011
  • June
Colors
  • Aurora Silver
  • Moon Rock Grey
  • Fantasy Purple
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 520 EUR
  • 220 EUR
Body build
  • Glass front (Gorilla Glass 5)
  • glass back (Gorilla Glass 5)
  • aluminum frame
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Ace2, V821.
SpecificationAce2V821
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Dual SIM (Mini-SIM)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2CDMA 800 / 1900 & TD-SCDMA -3G - HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 CDMA2000 1xEV-DO -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 12(700)
  • 17(700)
  • 20(800)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500) - China -5G - 5G band 1(2100)
  • 41(2500)
  • 78(3500)
  • 79(4700); SA/NSA - China
Unknown
Speed
  • HSPA
  • LTE-A
Unknown
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac/ax
  • dual-band
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 b/g
  • hotspot
GPS
  • Yes
  • with dual-band A-GPS
  • GLONASS
  • BDS
  • GALILEO
  • QZSS
  • Yes
  • with A-GPS
USB
  • 2.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
  • microUSB 2.0
Bluetooth
  • 5.1
  • A2DP
  • LE
  • aptX HD
  • 2.1
  • A2DP
Music and Audio
Music and Audio — specifications for Ace2, V821.
SpecificationAce2V821
Radio Unknown
  • FM radio
Others
  • 500 nits typ. brightness (advertised) -HDR10+ -90Hz refresh rate
Unknown
Other features
Other features — specifications for Ace2, V821.
SpecificationAce2V821
Dop
  • Sensors Fingerprint (under display
  • optical)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast charging 65W
  • 100% in 30 min (advertised) -SuperVOOC 2.0 -Fast wireless charging 40W
  • 100% in 56 min (advertised) -Wireless reverse charging 10W
  • MP4/H.264 player -MP3/WAV/eAAC+ player -Organizer -Voice memo -Predictive text input