HTC U Ultra vs Samsung Galaxy Round G910S

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.

  • Display technology

    OLED versus LCD

    U Ultra:
    LCD
    Galaxy Round G910S:
    OLED
  • Weight

    Galaxy Round G910S: 16 g lighter

    U Ultra:
    170 g
    Galaxy Round G910S:
    154 g
  • Chipset

    U Ultra:
    Qualcomm MSM8996 Snapdragon 821 (14 nm)
    Galaxy Round G910S:
    Qualcomm Snapdragon 800 (28 nm)
  • Height

    Galaxy Round G910S: 11.3 mm shorter

    U Ultra:
    162.4 mm
    Galaxy Round G910S:
    151.1 mm
  • Release year

    U Ultra:
    2017
    Galaxy Round G910S:
    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. U Ultra

    Height:
    162.4 mm +11.3 mm versus Galaxy Round G910S
    Width:
    79.8 mm
    Depth:
    8 mm
  2. 2. Galaxy Round G910S

    Height:
    151.1 mm
    Width:
    79.6 mm
    Depth:
    7.9 mm

Weight

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

  1. 1. U Ultra

    170 g

    +16 g versus Galaxy Round G910S

  2. 2. Galaxy Round G910S

    154 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. U Ultra

    Screen diagonal:
    5.7 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    89.6 cm²
  2. 2. Galaxy Round G910S

    Screen diagonal:
    5.7 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    89.6 cm²

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 U Ultra, Galaxy Round G910S, compared at the same storage capacity.
StorageU UltraGalaxy Round G910S
32 GB Unknown 3 GB RAM
U Ultra: Original memory entry

64/128 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. U Ultra

NFC:
Yes
Headphone jack:
No
Memory card support:
See details microSD · up to 512 GB (uses SIM 2 slot)

2. Galaxy Round G910S

NFC:
Yes
Headphone jack:
Yes
Memory card support:
See details microSD · up to 64 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. U Ultra

    3000 mAh

    +200 mAh versus Galaxy Round G910S

  2. 2. Galaxy Round G910S

    2800 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. U Ultra2. Galaxy Round G910S

Everyday essentials
Everyday essentials — specifications for U Ultra, Galaxy Round G910S.
SpecificationU UltraGalaxy Round G910S
Dimensions (HxWxD)
  • 162.4 Х 79.8 Х 8 mm
  • 151.1 Х 79.6 Х 7.9 mm
Weight
  • 170 g
  • 154 g
Technology
  • Super LCD5
  • Super Flexible AMOLED
Screen size
  • 5.7" inch
  • 5.7" inch
Screen resolution
  • 1440 x 2560 px
  • 1080 x 1920 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64/128 GB
  • 512GB 4GB
  • 32 GB
  • 3 GB RAM
Memory card support
  • microSD
  • up to 512 GB (uses SIM 2 slot)
  • microSD
  • up to 64 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3000 mAh
  • Non-removable Li-Ion
  • 2800 mAh
  • Removable Li-Ion
Operating system OS
  • Android 7.0 (Nougat)
  • upgradable to Android 8.0 (Oreo)
  • Android 4.3 (Jelly Bean)
Chipset
  • Qualcomm MSM8996 Snapdragon 821 (14 nm)
  • Qualcomm Snapdragon 800 (28 nm)
NFC
  • Yes
  • Yes
Headphone jack
  • No
  • Yes
Display
Display — specifications for U Ultra, Galaxy Round G910S.
SpecificationU UltraGalaxy Round G910S
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 90.3 cm2
  • 89.6 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 69.7%
  • 74.5%
PPI /points per inch/
  • 513 PPI
  • 386 PPI
Screen protection
  • Corning Gorilla Glass 5 (64 GB version)Sapphire crystal glass (128 GB version)
Unknown
Camera and Video
Camera and Video — specifications for U Ultra, Galaxy Round G910S.
SpecificationU UltraGalaxy Round G910S
Rear camera, main
  • 12 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 12 MP
  • f/1.8
  • 26mm (wide)
  • 1/2.3''
  • 1.55µm
  • OIS
  • PDAF & laser AF
  • 13 MP
  • AF
Functions
  • Auto-HDR
  • LED flash
  • panorama
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 16 MP
  • Single
  • 2 MP
  • Single
Specifications
  • 16 MP
  • 2 MP
Performance

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

Performance — specifications for U Ultra, Galaxy Round G910S.
SpecificationU UltraGalaxy Round G910S
Processor CPU
  • Quad-core (2x2.15 GHz Kryo & 2x1.6 GHz Kryo)
  • Quad-core 2.3 GHz Krait 400
Graphics processor GPU
  • Adreno 530
  • Adreno 330
Antutu 7 score *
  • 168385
  • 38521
GeekBench 4 Single Core *
  • 1662
Unknown
GeekBench 4 Multi-Core *
  • 3920
Unknown
GeekBench 4 RenderScript *
  • 7174
Unknown
GeekBench 5 Single Core *
  • 302
Unknown
GeekBench 5 Multi-Core *
  • 795
Unknown
General specs
General specs — specifications for U Ultra, Galaxy Round G910S.
SpecificationU UltraGalaxy Round G910S
Release date
  • 2017
  • January
  • 2013
  • October
Colors
  • Brilliant Black
  • Cosmetic Pink
  • Ice White
  • Sapphire Blue
  • Luxury Brown
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 250 EUR
  • 680 EUR
Battery life
  • Stand by time- Up to 312 h (3G) Talking time- Up to 26 h (3G)
  • Stand by time- Up to 370 h (2G) / Up to 330 h (3G) Talking time- Up to 16 h Music play - Up to 74 h
Body build
  • Front/back glass
  • aluminum frame
  • Curved body and display
Communication and Connectivity
Communication and Connectivity — specifications for U Ultra, Galaxy Round G910S.
SpecificationU UltraGalaxy Round G910S
SIM card
  • Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
  • Micro-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 12(700)
  • 17(700)
  • 20(800)
  • 28(700)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 850 / 1900 / 2100 -4G - LTE band 5(850)
  • 9(1800)
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (3CA) Cat11 600/50 Mbps
  • HSPA
  • LTE-A
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • DLNA
  • hotspot
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • DLNA
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • Yes
  • with A-GPS
  • GLONASS
USB
  • 3.1
  • Type-C 1.0 reversible connector
  • microUSB 2.0 (MHL 2 TV-out)
  • USB Host
Bluetooth
  • 4.2
  • A2DP
  • LE
  • 4.0
  • A2DP
  • EDR
  • LE
Harmful irradiation Unknown
  • SAR - 0.63 W/kg (head) 0.69 W/kg (body) SAR EU - 0.21 W/kg (head) 0.35 W/kg (body)
Music and Audio
Music and Audio — specifications for U Ultra, Galaxy Round G910S.
SpecificationU UltraGalaxy Round G910S
Radio
  • No
  • No
Others
  • Secondary display
  • 160 x 1040 pixels
  • 2 inches
  • 24-bit/192kHz audio -Active noise cancellation with dedicated mic
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for U Ultra, Galaxy Round G910S.
SpecificationU UltraGalaxy Round G910S
Dop
  • Sensors Fingerprint (front-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging (Quick Charge 3.0) - Also known as HTC Ocean Note
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass
  • barometer
  • temperature
  • humidity
  • gesture
  • Infrared port - ANT+ -S-Voice natural language commands and dictation -Air gestures - For South Korea