ZTE N721 vs ZTE Open

Compare recorded specifications, size and practical differences.

+ Add a third phone

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.

  • Width

    N721: 5.8 mm narrower

    N721:
    56.2 mm
    Open:
    62 mm
  • Screen diagonal

    N721: 0.7 in smaller diagonal

    N721:
    2.8 in
    Open:
    3.5 in
  • Depth

    Open: 1.7 mm thinner

    N721:
    14.2 mm
    Open:
    12.5 mm
  • Height

    N721: 8 mm shorter

    N721:
    106 mm
    Open:
    114 mm
  • Release year

    N721:
    2011
    Open:
    2013

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. N721

    Height:
    106 mm
    Width:
    56.2 mm
    Depth:
    14.2 mm +1.7 mm versus Open
    Weight:
    105 g
  2. 2. Open

    Height:
    114 mm +8 mm versus N721
    Width:
    62 mm +5.8 mm versus N721
    Depth:
    12.5 mm
    Weight:
    Unknown

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. N721

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

    Screen diagonal:
    3.5 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    36.5 cm²

Open has approximately 50.2% 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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

N721: Original memory entry

150 MB

Open: Original memory entry

512 MB ROM · 256 MB RAM

Practical features

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

1. N721

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

2. Open

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated slot) · 2 GB included

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. N721

    1100 mAh

  2. 2. Open

    1200 mAh

    +100 mAh versus N721

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. N7212. Open

Everyday essentials
Everyday essentials — specifications for N721, Open.
SpecificationN721Open
Dimensions (HxWxD)
  • 106 Х 56.2 Х 14.2 mm
  • 114 Х 62 Х 12.5 mm
Weight
  • 105 g
  • 0 g
Technology
  • TFT
  • TFT
Screen size
  • 2.8" inch
  • 3.5" inch
Screen resolution
  • 240 x 320 px
  • 320 x 480 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 150 MB
  • 512 MB ROM
  • 256 MB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 32 GB (dedicated slot)
  • 2 GB included
Battery Capacity is not battery life. No endurance test is implied.
  • 1100 mAh
  • Removable Li-Ion
  • 1200 mAh
  • Removable Li-Ion
Operating system OS
  • Android OS
  • Firefox OS 1.0
Chipset Unknown
  • Qualcomm MSM7225A Snapdragon S1
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for N721, Open.
SpecificationN721Open
Touchscreen
  • touchscreen
  • capacitive touchscreen
Display colors
  • 256K
Unknown
Screen area
  • 24.3 cm2
  • 36.5 cm2
Screen format
  • 4:3 (height:width)
  • 3:2 (height:width)
Screen to body ratio
  • 40.8%
  • 51.6%
PPI /points per inch/
  • 143 PPI
  • 165 PPI
Camera and Video
Camera and Video — specifications for N721, Open.
SpecificationN721Open
Rear camera, main
  • 2 MP
  • Single
  • 3.15 MP
  • Single
Camera specs
  • 2 MP
  • 3.15 MP
Video
  • Yes
  • Yes
Front camera, selfie
  • 0 MP,
  • 0 MP,
Performance

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

Performance — specifications for N721, Open.
SpecificationN721Open
Processor CPU Unknown
  • 1.0 GHz Cortex-A5
Graphics processor GPU Unknown
  • Adreno 200
Antutu 7 score * Unknown
  • 1456
General specs
General specs — specifications for N721, Open.
SpecificationN721Open
Release date
  • 2011
  • 2013
  • February
Colors
  • Black
  • Blue
  • Orange
Battery life
  • Stand by time- Up to 250 h Talking time- Up to 4 h 10 min
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for N721, Open.
SpecificationN721Open
SIM card
  • Mini-SIM
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 900 / 1800
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed
  • HSPA 7.2/0.384 Mbps
  • HSPA 7.2/5.76 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g
  • Wi-Fi 802.11 b/g/n
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 2.1
  • 2.1
  • A2DP
  • EDR
Harmful irradiation
  • SAR EU - 0.73 W/kg (head)
Unknown
Music and Audio
Music and Audio — specifications for N721, Open.
SpecificationN721Open
Radio Unknown
  • Stereo FM radio
Other features
Other features — specifications for N721, Open.
SpecificationN721Open
Dop
  • Sensors Accelerometer MP4/H.264 player -MP3/WAV/eAAC+ player -Organizer -Voice memo -Predictive text input
  • Sensors Accelerometer
  • proximity - MP3/eAAC+/WAV/WMA player -MP4/H.264/WMV player -Document viewer -Photo viewer -Organizer -Voice memo/dial -Predictive text input