O2 XDA Atom Exec vs Xiaomi Mi Mix 3

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.

  • Weight

    XDA Atom Exec: 78 g lighter

    XDA Atom Exec:
    140 g
    Mi Mix 3:
    218 g
  • Width

    XDA Atom Exec: 16.7 mm narrower

    XDA Atom Exec:
    58 mm
    Mi Mix 3:
    74.7 mm
  • Screen diagonal

    XDA Atom Exec: 3.69 in smaller diagonal

    XDA Atom Exec:
    2.7 in
    Mi Mix 3:
    6.39 in
  • Rear camera layout

    XDA Atom Exec:
    Single
    Mi Mix 3:
    Dual
  • Depth

    Mi Mix 3: 10 mm thinner

    XDA Atom Exec:
    18.5 mm
    Mi Mix 3:
    8.5 mm
  • Height

    XDA Atom Exec: 55.9 mm shorter

    XDA Atom Exec:
    102 mm
    Mi Mix 3:
    157.9 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. XDA Atom Exec

    Height:
    102 mm
    Width:
    58 mm
    Depth:
    18.5 mm +10 mm versus Mi Mix 3
  2. 2. Mi Mix 3

    Height:
    157.9 mm +55.9 mm versus XDA Atom Exec
    Width:
    74.7 mm +16.7 mm versus XDA Atom Exec
    Depth:
    8.5 mm

Weight

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

  1. 1. XDA Atom Exec

    140 g

  2. 2. Mi Mix 3

    218 g

    +78 g versus XDA Atom Exec

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. XDA Atom Exec

    Screen diagonal:
    2.7 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    22.6 cm²
  2. 2. Mi Mix 3

    Screen diagonal:
    6.39 in
    Aspect ratio (height:width):
    19.5:9
    Approximate rectangular screen area:
    100.2 cm²

Mi Mix 3 has approximately 344% more rectangular screen area than XDA Atom Exec.

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.

XDA Atom Exec: Original memory entry

64 MB RAM · 192 MB ROM

Mi Mix 3: Original memory entry

256 GB · 8/10 GB RAM 128 GB · 6/8 GB 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. XDA Atom Exec

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details miniSD

2. Mi Mix 3

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

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. XDA Atom Exec

    1530 mAh

  2. 2. Mi Mix 3

    3200 mAh

    +1670 mAh versus XDA Atom Exec

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. XDA Atom Exec2. Mi Mix 3

Everyday essentials
Everyday essentials — specifications for XDA Atom Exec, Mi Mix 3.
SpecificationXDA Atom ExecMi Mix 3
Dimensions (HxWxD)
  • 102 Х 58 Х 18.5 mm
  • 157.9 Х 74.7 Х 8.5 mm
Weight
  • 140 g
  • 218 g
Technology
  • TFT
  • Super AMOLED
Screen size
  • 2.7" inch
  • 6.39" inch
Screen resolution
  • 240 x 320 px
  • 1080 x 2340 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64 MB RAM
  • 192 MB ROM
  • 256 GB
  • 8/10 GB RAM 128 GB
  • 6/8 GB RAM
Memory card support
  • miniSD
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 1530 mAh
  • Removable Li-Po
  • 3200 mAh
  • Non-removable Li-Ion
Operating system OS
  • Microsoft Windows Mobile 5.0 PocketPC
  • Android 9.0 (Pie); MIUI 10
Chipset Unknown
  • Qualcomm SDM845 Snapdragon 845 (10 nm)
NFC Unknown
  • Yes
Headphone jack
  • No
  • No
Display
Display — specifications for XDA Atom Exec, Mi Mix 3.
SpecificationXDA Atom ExecMi Mix 3
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 22.6 cm2
  • 100.2 cm2
Screen format
  • 4:3 (height:width)
  • 19.5:9 (height:width)
Screen to body ratio
  • 38.2%
  • 85.0%
PPI /points per inch/
  • 148 PPI
  • 403 PPI
Screen protection Unknown
  • Corning Gorilla Glass 5
Camera and Video

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

Camera and Video — specifications for XDA Atom Exec, Mi Mix 3.
SpecificationXDA Atom ExecMi Mix 3
Rear camera, main
  • 2 MP
  • Single
  • 12 MP
  • Dual
Camera specs
  • 2 MP
  • 12 MP (wide)
  • f/1.8
  • 1/2.55''
  • 1.4µm
  • dual pixel PDAF
  • 4-axis OIS -12 MP (telephoto)
  • 1/3.4''
  • 1.0µm
Functions
  • LED flash
  • LED flash
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0 MP,
  • 24 MP
  • Dual
Specifications Unknown
  • Mechanical pop-up 24 MP
  • 1/2.8''
  • 0.9µm Mechanical pop-up 2 MP
  • depth sensor
DxOMark Main Score * Unknown
  • 103
DxOMark Photo * Unknown
  • 83
DxOMark Video * Unknown
  • 85
DxOMark Selfie Score * Unknown
  • 84
Performance

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

Performance — specifications for XDA Atom Exec, Mi Mix 3.
SpecificationXDA Atom ExecMi Mix 3
Processor CPU
  • Intel XScale PXA 27x 520MHz
  • Octa-core (4x2.8 GHz Kryo 385 Gold & 4x1.7 GHz Kryo 385 Silver)
Graphics processor GPU Unknown
  • Adreno 630
Antutu 7 score * Unknown
  • 296026
GeekBench 4 Single Core * Unknown
  • 2127
GeekBench 4 Multi-Core * Unknown
  • 8340
Antutu 8 score * Unknown
  • 350208
GeekBench 5 Single Core * Unknown
  • 448
GeekBench 5 Multi-Core * Unknown
  • 2004
General specs
General specs — specifications for XDA Atom Exec, Mi Mix 3.
SpecificationXDA Atom ExecMi Mix 3
Release date
  • 2006
  • June
  • 2018
  • October
Colors
  • Silver
  • Jade Green
  • Sapphire Blue
  • Onyx Black
  • Forbidden City Blue (10 GB only)
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 310 EUR
  • 560 EUR
Body build Unknown
  • Front glass
  • aluminum frame (7000 series)
  • ceramic back
Communication and Connectivity
Communication and Connectivity — specifications for XDA Atom Exec, Mi Mix 3.
SpecificationXDA Atom ExecMi Mix 3
SIM card
  • Mini-SIM
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network Unknown
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 / 1900 & TD-SCDMA -3G - HSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100 - Global CDMA2000 1xEV-DO HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - China -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 12(700)
  • 13(700)
  • 17(700)
  • 18(800)
  • 19(800)
  • 20(800)
  • 25(1900)
  • 26(850)
  • 28(700)
  • 29(700)
  • 30(2300)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
  • 66(1700/2100) - Global LTE band 1(2100)
  • 41(2500) - China
Speed Unknown
  • HSPA
  • LTE
GPRS
  • Class 10
  • Yes
Edge
  • Class 10
  • Yes
Wi-Fi
  • Wi-Fi 802.11b
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
GPS
  • No
  • Yes
  • with dual-band A-GPS
  • GLONASS
  • BDS
  • GALILEO
  • QZSS
USB
  • miniUSB
  • Type-C 1.0 reversible connector
Bluetooth
  • 1.2
  • 5.0
  • A2DP
  • aptX HD
  • LE
Music and Audio
Music and Audio — specifications for XDA Atom Exec, Mi Mix 3.
SpecificationXDA Atom ExecMi Mix 3
Radio
  • FM radio
  • No
Others
  • Handwriting recognition
  • HDR
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for XDA Atom Exec, Mi Mix 3.
SpecificationXDA Atom ExecMi Mix 3
Dop
  • Infrared port - Pocket Office -MP3/AAC/AAC+/WMA/OGG/AMR player -WMV/MP4 player
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging (Quick Charge 4.0+) -Wireless charging