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Sharp Z2 vs vivo X21

Compare recorded specifications, size and practical differences.

Sharp Z2

Sharp Z2

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vivo X21

vivo X21

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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.

  • Display technologyOLED versus LCDZ2: LCD · X21: OLED
  • WidthX21: 1.2 mm narrowerX21: 74.8 mm · Z2: 76 mm
  • Screen diagonalZ2: 0.78 in smaller diagonalZ2: 5.5 in · X21: 6.28 in
  • ChipsetMediatek MT6797 Helio X20 (20 nm) / Qualcomm SDM660 Snapdragon 660 (14 nm)Z2: Mediatek MT6797 Helio X20 (20 nm) · X21: Qualcomm SDM660 Snapdragon 660 (14 nm)
  • Rear camera layoutSingle / DualZ2: Single · X21: Dual
  • DepthX21: 1 mm thinnerX21: 7.4 mm · Z2: 8.4 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.

Front
Z2: 153 × 76 mm 1 X21: 154.5 × 74.8 mm 2
Side
Z2: 153 × 8.4 mm 1 X21: 154.5 × 7.4 mm 2
  1. 1. Z2
    Height
    153 mm
    Width
    76 mm+1.2 mm versus X21
    Depth
    8.4 mm+1 mm versus X21
    Weight
    160 g
  2. 2. X21
    Height
    154.5 mm
    Width
    74.8 mm
    Depth
    7.4 mm
    Weight
    156.2 g
Weight

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

  1. 1. Z2160 g

    +3.8 g versus X21

  2. 2. X21156.2 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.

Screen size
Z2: 5.5 in, 16:9, About 83.4 cm² rectangular area 1 X21: 6.28 in, 19:9, About 98.4 cm² rectangular area 2
  1. 1. Z2 5.5 in · 16:9 About 83.4 cm² rectangular area
  2. 2. X21 6.28 in · 19:9 About 98.4 cm² rectangular area

X21 has approximately 18% more rectangular screen area than Z2.

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 by storage capacity and phone
StorageZ2X21
64 GB Unknown 6 GB RAM
128 GB Unknown 6 GB RAM
Z2: Original memory entry

32 GB · 512GB 4GB

Practical features

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

1. Z2

NFC
Unknown
Headphone jack
Yes
Memory card support
See details microSD · up to 256 GB (uses SIM 2 slot)

2. X21

NFC
Unknown
Headphone jack
Yes
Memory card support
See details microSD · up to 256 GB (uses SIM 2 slot)

Battery capacity

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

Recorded capacity

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

  1. 1. Z23000 mAh
  2. 2. X213200 mAh

    +200 mAh versus Z2

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. Z22. X21

Everyday essentials
Everyday essentials
SpecificationZ2X21
Dimensions (HxWxD)
  • 153 Х 76 Х 8.4 mm
  • 154.5 Х 74.8 Х 7.4 mm
Weight
  • 160 g
  • 156.2 g
Technology
  • LTPS IPS LCD
  • Super AMOLED
Screen size
  • 5.5" inch
  • 6.28" inch
Screen resolution
  • 1080 x 1920 px
  • 1080 x 2280 px
Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32 GB
  • 512GB 4GB
  • 64/128 GB
  • 6 GB RAM
Memory card support
  • microSD
  • up to 256 GB (uses SIM 2 slot)
  • microSD
  • up to 256 GB (uses SIM 2 slot)
BatteryCapacity is not battery life. No endurance test is implied.
  • 3000 mAh
  • Non-removable Li-Ion
  • 3200 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 6.0 (Marshmallow)
  • Android 8.1 (Oreo); Funtouch 4
Chipset
  • Mediatek MT6797 Helio X20 (20 nm)
  • Qualcomm SDM660 Snapdragon 660 (14 nm)
Headphone jack
  • Yes
  • Yes
Display
Display
SpecificationZ2X21
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 83.4 cm2
  • 98.4 cm2
Screen format
  • 16:9 (height:width)
  • 19:9 (height:width)
Screen to body ratio
  • 71.7%
  • 85.2%
PPI /points per inch/
  • 401 PPI
  • 402 PPI
Screen protection
  • Corning Gorilla Glass (unspecified version)
Unknown
Camera and Video
Camera and Video
SpecificationZ2X21
Rear camera, main
  • 16 MP
  • Single
  • 12 MP
  • Dual
Camera specs
  • 16 MP
  • PDAF
  • 12 MP
  • f/1.8
  • 1/2.55''
  • 1.4µm
  • dual pixel PDAF -5 MP
  • f/2.4
  • depth sensor
Functions
  • LED flash
  • panorama
  • HDR
  • LED flash
  • HDR
  • panorama
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 8 MP
  • Single
  • 12 MP
  • Single
Specifications
  • 8 MP
  • 12 MP
  • f/2.0
Performance
Performance
SpecificationZ2X21
Processor CPU
  • Deca-core (2x2.3GHz Cortex-A72
  • 4x2.0GHz Cortex-A53
  • 4x1.4GHz Cortex-A53)
  • Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260)
Graphics processor GPU
  • Mali-T880 MP4
  • Adreno 512
Antutu 7 scoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.
  • 85326
  • 143728
GeekBench 4 Single CoreLegacy recorded score. Test conditions are unspecified; no new testing is implied. Unknown
  • 1806
GeekBench 4 Multi-CoreLegacy recorded score. Test conditions are unspecified; no new testing is implied. Unknown
  • 4240
General specs
General specs
SpecificationZ2X21
Release date
  • 2016
  • October
  • 2018
  • March
Colors
  • Silver
  • Gold
  • Black
  • Aurora White
  • Ruby Red
Historical recorded priceLegacy catalogue value; date unknown. Not a current offer.
  • 330 EUR
  • 450 EUR
Body build Unknown
  • Front glass
  • aluminum body
Communication and Connectivity
Communication and Connectivity
SpecificationZ2X21
SIM card
  • Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
  • Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 5(850)
  • 8(900)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA
  • LTE
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n
  • hotspot
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • Yes
  • with A-GPS
  • GLONASS
USB
  • Type-C 1.0 reversible connector
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 4.1
  • A2DP
  • LE
  • 5.0
  • A2DP
  • LE
Music and Audio
Music and Audio
SpecificationZ2X21
Radio
  • FM radio
  • FM radio
Others
  • Active noise cancellation with dedicated mic
  • 32-bit/192kHz audio -Active noise cancellation with dedicated mic
Other features
Other features
SpecificationZ2X21
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass - Fast battery charging