Xiaomi Black Shark 3 Pro vs ZTE N721

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

    N721: 148 g lighter

    Black Shark 3 Pro:
    253 g
    N721:
    105 g
  • Width

    N721: 27.1 mm narrower

    Black Shark 3 Pro:
    83.3 mm
    N721:
    56.2 mm
  • Screen diagonal

    N721: 4.3 in smaller diagonal

    Black Shark 3 Pro:
    7.1 in
    N721:
    2.8 in
  • Rear camera layout

    Black Shark 3 Pro:
    Triple
    N721:
    Single
  • Depth

    Black Shark 3 Pro: 4.1 mm thinner

    Black Shark 3 Pro:
    10.1 mm
    N721:
    14.2 mm
  • Height

    N721: 71.8 mm shorter

    Black Shark 3 Pro:
    177.8 mm
    N721:
    106 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. Black Shark 3 Pro

    Height:
    177.8 mm +71.8 mm versus N721
    Width:
    83.3 mm +27.1 mm versus N721
    Depth:
    10.1 mm
  2. 2. N721

    Height:
    106 mm
    Width:
    56.2 mm
    Depth:
    14.2 mm +4.1 mm versus Black Shark 3 Pro

Weight

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

  1. 1. Black Shark 3 Pro

    253 g

    +148 g versus N721

  2. 2. N721

    105 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.

  1. 1. Black Shark 3 Pro

    Screen diagonal:
    7.1 in
    Aspect ratio (height:width):
    19.5:9
    Approximate rectangular screen area:
    123.7 cm²
  2. 2. N721

    Screen diagonal:
    2.8 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    24.3 cm²

Black Shark 3 Pro has approximately 409.7% more rectangular screen area than N721.

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 Black Shark 3 Pro, N721, compared at the same storage capacity.
StorageBlack Shark 3 ProN721
256 GB 8 GB RAM Unknown
512 GB 12 GB RAM Unknown
N721: Original memory entry

150 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. Black Shark 3 Pro

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

2. N721

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.

Recorded battery capacity

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

  1. 1. Black Shark 3 Pro

    5000 mAh

    +3900 mAh versus N721

  2. 2. N721

    1100 mAh

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. Black Shark 3 Pro2. N721

Everyday essentials
Everyday essentials — specifications for Black Shark 3 Pro, N721.
SpecificationBlack Shark 3 ProN721
Dimensions (HxWxD)
  • 177.8 Х 83.3 Х 10.1 mm
  • 106 Х 56.2 Х 14.2 mm
Weight
  • 253 g
  • 105 g
Technology
  • AMOLED
  • TFT
Screen size
  • 7.1" inch
  • 2.8" inch
Screen resolution
  • 1440 x 3120 px
  • 240 x 320 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 256GB 8GB RAM
  • 512GB 12GB RAM
  • 150 MB
Memory card support
  • No
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 5000 mAh
  • Non-removable Li-Po
  • 1100 mAh
  • Removable Li-Ion
Operating system OS
  • Android 10.0
  • Android OS
Chipset
  • Qualcomm SM8250 Snapdragon 865 (7 nm+)
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Black Shark 3 Pro, N721.
SpecificationBlack Shark 3 ProN721
Touchscreen
  • capacitive touchscreen
  • touchscreen
Display colors
  • 16M
  • 256K
Screen area
  • 123.7 cm2
  • 24.3 cm2
Screen format
  • 19.5:9 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 83.6%
  • 40.8%
PPI /points per inch/
  • 484 PPI
  • 143 PPI
Camera and Video
Camera and Video — specifications for Black Shark 3 Pro, N721.
SpecificationBlack Shark 3 ProN721
Rear camera, main
  • 64 MP
  • Triple
  • 2 MP
  • Single
Camera specs
  • 64 MP
  • f/1.8
  • 26mm (wide)
  • 1/1.72''
  • 0.8µm
  • PDAF -13 MP
  • f/2.3
  • (ultrawide) -5 MP
  • f/2.2
  • (depth)
  • 2 MP
Functions
  • HDR
Unknown
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 20 MP
  • Single
  • 0 MP,
Specifications
  • 20 MP
  • f/2.2
  • (wide)
  • 1/3''
  • 0.9μm
Unknown
Performance

Scores marked * are historical catalogue entries. Test conditions are unspecified; no new testing is implied.

Performance — specifications for Black Shark 3 Pro, N721.
SpecificationBlack Shark 3 ProN721
Processor CPU
  • Octa-core (1x2.84 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585)
Unknown
Graphics processor GPU
  • Adreno 650
Unknown
Antutu 8 score *
  • 609523
Unknown
General specs
General specs — specifications for Black Shark 3 Pro, N721.
SpecificationBlack Shark 3 ProN721
Release date
  • 2020
  • March 3
  • 2011
Colors
  • Phantom Black
  • Armor Gray
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • $ 830
Unknown
Battery life Unknown
  • Stand by time- Up to 250 h Talking time- Up to 4 h 10 min
Body build
  • Glass front
  • aluminum back
  • aluminum frame
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Black Shark 3 Pro, N721.
SpecificationBlack Shark 3 ProN721
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA -3G - HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 CDMA2000 1xEV-DO -4G - LTE band 1(2100)
  • 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) -5G - 5G band 41(2500)
  • 78(3500)
  • 79(4700); SA/NSA
  • Show all network frequencies: -2G - GSM 900 / 1800
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A; 5G
  • HSPA 7.2/0.384 Mbps
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
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • QZSS
  • BDS
  • Yes
  • with A-GPS
USB
  • 2.0
  • Type-C 1.0 reversible connector
  • microUSB 2.0
Bluetooth
  • 5.0
  • A2DP
  • LE
  • aptX HD
  • aptX Adaptive
  • 2.1
Harmful irradiation Unknown
  • SAR EU - 0.73 W/kg (head)
Music and Audio
Music and Audio — specifications for Black Shark 3 Pro, N721.
SpecificationBlack Shark 3 ProN721
Radio
  • No
Unknown
Others
  • Always-on display -90Hz refresh rate -500 nits typ. brightness -HDR10+
Unknown
Other features
Other features — specifications for Black Shark 3 Pro, N721.
SpecificationBlack Shark 3 ProN721
Dop
  • Sensors Fingerprint (under display
  • optical)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 65W: 100% in 38 min -Magnetic charging 18W - Physical pop-up gaming triggers
  • Sensors Accelerometer MP4/H.264 player -MP3/WAV/eAAC+ player -Organizer -Voice memo -Predictive text input