Energizer Ultimate U650S vs O2 XDA Atom Exec

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

    XDA Atom Exec: 18.5 mm narrower

    Ultimate U650S:
    76.5 mm
    XDA Atom Exec:
    58 mm
  • Screen diagonal

    XDA Atom Exec: 3.8 in smaller diagonal

    Ultimate U650S:
    6.5 in
    XDA Atom Exec:
    2.7 in
  • Rear camera layout

    Ultimate U650S:
    Dual
    XDA Atom Exec:
    Single
  • Depth

    Ultimate U650S: 10.3 mm thinner

    Ultimate U650S:
    8.2 mm
    XDA Atom Exec:
    18.5 mm
  • Height

    XDA Atom Exec: 60.5 mm shorter

    Ultimate U650S:
    162.5 mm
    XDA Atom Exec:
    102 mm
  • Release year

    Ultimate U650S:
    2019
    XDA Atom Exec:
    2006

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. Ultimate U650S

    Height:
    162.5 mm +60.5 mm versus XDA Atom Exec
    Width:
    76.5 mm +18.5 mm versus XDA Atom Exec
    Depth:
    8.2 mm
    Weight:
    Unknown
  2. 2. XDA Atom Exec

    Height:
    102 mm
    Width:
    58 mm
    Depth:
    18.5 mm +10.3 mm versus Ultimate U650S
    Weight:
    140 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. Ultimate U650S

    Screen diagonal:
    6.5 in
    Aspect ratio (height:width):
    18.5:9
    Approximate rectangular screen area:
    107.2 cm²
  2. 2. XDA Atom Exec

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

Ultimate U650S has approximately 375% 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.

Ultimate U650S: Original memory entry

128 GB · 512GB 4GB

XDA Atom Exec: Original memory entry

64 MB RAM · 192 MB ROM

Practical features

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

1. Ultimate U650S

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD · up to 256 GB (uses SIM 2 slot)

2. XDA Atom Exec

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

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. Ultimate U650S

    3500 mAh

    +1970 mAh versus XDA Atom Exec

  2. 2. XDA Atom Exec

    1530 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. Ultimate U650S2. XDA Atom Exec

Everyday essentials
Everyday essentials — specifications for Ultimate U650S, XDA Atom Exec.
SpecificationUltimate U650SXDA Atom Exec
Dimensions (HxWxD)
  • 162.5 Х 76.5 Х 8.2 mm
  • 102 Х 58 Х 18.5 mm
Weight
  • 0 g
  • 140 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 6.5" inch
  • 2.7" inch
Screen resolution
  • 720 x 1480 px
  • 240 x 320 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128 GB
  • 512GB 4GB
  • 64 MB RAM
  • 192 MB ROM
Memory card support
  • microSD
  • up to 256 GB (uses SIM 2 slot)
  • miniSD
Battery Capacity is not battery life. No endurance test is implied.
  • 3500 mAh
  • Non-removable Li-Ion
  • 1530 mAh
  • Removable Li-Po
Operating system OS
  • Android 9.0 (Pie)
  • Microsoft Windows Mobile 5.0 PocketPC
Chipset
  • Mediatek MT6762 Helio P22 (12 nm)
Unknown
Headphone jack
  • No
  • No
Display
Display — specifications for Ultimate U650S, XDA Atom Exec.
SpecificationUltimate U650SXDA Atom Exec
Touchscreen
  • capacitive touchscreen
  • resistive touchscreen
Display colors
  • 16M
Unknown
Screen area
  • 107.2 cm2
  • 22.6 cm2
Screen format
  • 18.5:9 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 86.3%
  • 38.2%
PPI /points per inch/
  • 253 PPI
  • 148 PPI
Camera and Video
Camera and Video — specifications for Ultimate U650S, XDA Atom Exec.
SpecificationUltimate U650SXDA Atom Exec
Rear camera, main
  • 16 MP
  • Dual
  • 2 MP
  • Single
Camera specs
  • 16 MP
  • PDAF -2 MP
  • depth sensor
  • 2 MP
Functions
  • Dual-LED dual-tone flash
  • panorama
  • HDR
  • LED flash
Video
  • 1080p
  • Yes
Front camera, selfie
  • 16 MP
  • Single
  • 0 MP,
Specifications
  • 16 MP
Unknown
Performance
Performance — specifications for Ultimate U650S, XDA Atom Exec.
SpecificationUltimate U650SXDA Atom Exec
Processor CPU
  • Octa-core 2.0 GHz Cortex-A53
  • Intel XScale PXA 27x 520MHz
Graphics processor GPU
  • PowerVR GE8320
Unknown
General specs
General specs — specifications for Ultimate U650S, XDA Atom Exec.
SpecificationUltimate U650SXDA Atom Exec
Release date
  • 2019
  • January
  • 2006
  • June
Colors Unknown
  • Silver
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 310 EUR
Communication and Connectivity
Communication and Connectivity — specifications for Ultimate U650S, XDA Atom Exec.
SpecificationUltimate U650SXDA Atom Exec
SIM card
  • Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800)
  • 40(2300)
Unknown
Speed
  • HSPA
  • LTE-A
Unknown
GPRS
  • Yes
  • Class 10
Edge
  • Yes
  • Class 10
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11b
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • No
USB
  • 2.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
  • miniUSB
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 1.2
Music and Audio
Music and Audio — specifications for Ultimate U650S, XDA Atom Exec.
SpecificationUltimate U650SXDA Atom Exec
Radio
  • FM radio
  • FM radio
Others
  • Active noise cancellation with dedicated mic
  • Handwriting recognition
Other features
Other features — specifications for Ultimate U650S, XDA Atom Exec.
SpecificationUltimate U650SXDA Atom Exec
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - Pocket Office -MP3/AAC/AAC+/WMA/OGG/AMR player -WMV/MP4 player