LG Q51 vs Samsung Galaxy Alpha

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.

  • Display technology

    OLED versus LCD

    Q51:
    LCD
    Galaxy Alpha:
    OLED
  • Width

    Galaxy Alpha: 12 mm narrower

    Q51:
    77.5 mm
    Galaxy Alpha:
    65.5 mm
  • Screen diagonal

    Galaxy Alpha: 1.8 in smaller diagonal

    Q51:
    6.5 in
    Galaxy Alpha:
    4.7 in
  • Memory variants

    At 32 GB storage

    Q51:
    3 GB RAM
    Galaxy Alpha:
    2 GB RAM
  • Chipset

    Q51:
    Mediatek MT6762 Helio P22 (12 nm)
    Galaxy Alpha:
    Exynos 5430 Octa (20 nm)
  • Rear camera layout

    Q51:
    Triple
    Galaxy Alpha:
    Single

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. Q51

    Height:
    164.5 mm +32.1 mm versus Galaxy Alpha
    Width:
    77.5 mm +12 mm versus Galaxy Alpha
    Depth:
    8.4 mm +1.7 mm versus Galaxy Alpha
    Weight:
    Unknown
  2. 2. Galaxy Alpha

    Height:
    132.4 mm
    Width:
    65.5 mm
    Depth:
    6.7 mm
    Weight:
    115 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. Q51

    Screen diagonal:
    6.5 in
    Aspect ratio (height:width):
    19:9
    Approximate rectangular screen area:
    105.5 cm²
  2. 2. Galaxy Alpha

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

Q51 has approximately 73.2% more rectangular screen area than Galaxy Alpha.

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 Q51, Galaxy Alpha, compared at the same storage capacity.
StorageQ51Galaxy Alpha
32 GB Recorded for all phones 3 GB RAM 2 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. Q51

NFC:
Yes
Headphone jack:
Yes
Memory card support:
See details microSDXC (dedicated slot)

2. Galaxy Alpha

NFC:
Yes
Headphone jack:
Yes
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. Q51

    4000 mAh

    +2140 mAh versus Galaxy Alpha

  2. 2. Galaxy Alpha

    1860 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. Q512. Galaxy Alpha

Everyday essentials
Everyday essentials — specifications for Q51, Galaxy Alpha.
SpecificationQ51Galaxy Alpha
Dimensions (HxWxD)
  • 164.5 Х 77.5 Х 8.4 mm
  • 132.4 Х 65.5 Х 6.7 mm
Weight
  • 0 g
  • 115 g
Technology
  • IPS LCD
  • Super AMOLED
Screen size
  • 6.5" inch
  • 4.7" inch
Screen resolution
  • 720 x 1520 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32GB 3GB RAM
  • 32 GB
  • 2 GB RAM
Memory card support
  • microSDXC (dedicated slot)
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 4000 mAh
  • Non-removable Li-Po
  • 1860 mAh
  • Removable Li-Ion
Operating system OS
  • Android 10.0
  • Android 4.4.4 (KitKat)
  • upgradable to 5.0.2 (Lollipop)
Chipset
  • Mediatek MT6762 Helio P22 (12 nm)
  • Exynos 5430 Octa (20 nm)
NFC
  • Yes
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Q51, Galaxy Alpha.
SpecificationQ51Galaxy Alpha
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 105.5 cm2
  • 60.9 cm2
Screen format
  • 19:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 82.7%
  • 70.2%
PPI /points per inch/
  • 259 PPI
  • 312 PPI
Screen protection Unknown
  • Corning Gorilla Glass 4
Camera and Video
Camera and Video — specifications for Q51, Galaxy Alpha.
SpecificationQ51Galaxy Alpha
Rear camera, main
  • 13 MP
  • Triple
  • 12 MP
  • Single
Camera specs
  • 13 MP
  • (wide)
  • PDAF -5 MP
  • 13mm (ultrawide) -2 MP
  • f/2.4
  • (depth)
  • 12 MP
  • f/2.2
  • 31mm (standard)
  • AF
Functions
  • LED flash
  • panorama
  • HDR
  • LED flash
  • panorama
  • HDR
Video
  • 1080p@30fps
  • 2160p@30fps
  • 1080p@60fps
  • 720p@120fps
Front camera, selfie
  • 13 MP
  • Single
  • 2.1 MP
  • Single
Specifications
  • 13 MP
  • (wide)
  • 2.1 MP
Performance

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

Performance — specifications for Q51, Galaxy Alpha.
SpecificationQ51Galaxy Alpha
Processor CPU
  • Octa-core 2.0 GHz Cortex-A53
  • Octa-core (4x1.8 GHz Cortex-A15 & 4x1.3 GHz Cortex-A7)
Graphics processor GPU
  • PowerVR GE8320
  • Mali-T628 MP6
Antutu 7 score * Unknown
  • 50125
GeekBench 4 Single Core * Unknown
  • 782
GeekBench 4 Multi-Core * Unknown
  • 2457
GeekBench 4 RenderScript * Unknown
  • 1804
General specs
General specs — specifications for Q51, Galaxy Alpha.
SpecificationQ51Galaxy Alpha
Release date
  • 2020
  • February 25
  • 2014
  • August
Colors
  • Frozen White
  • Moonlight Titanium
  • Charcoal Black
  • Sleek Silver
  • Dazzling White
  • Frosted Gold
  • Scuba Blue
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 240 EUR
  • 390 EUR
Battery life Unknown
  • Stand by time- Up to 350 h (3G) Talking time- Up to 11 h (3G) Music play - Up to 37 h
Body build Unknown
  • aluminum frame
  • plastic back
Communication and Connectivity
Communication and Connectivity — specifications for Q51, Galaxy Alpha.
SpecificationQ51Galaxy Alpha
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Nano-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 7(2600)
  • 8(900)
  • 20(800)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800) - G850F LTE band 1(2100)
  • 4(1700/2100)
  • 17(700) - SM-G850M
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/75 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A Cat6 300/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • DLNA
  • hotspot
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
USB
  • 2.0
  • Type-C 1.0 reversible connector
  • microUSB 2.0
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 4.0
  • A2DP
  • EDR
  • LE
Harmful irradiation Unknown
  • SAR - 1.18 W/kg (head) 0.75 W/kg (body) SAR EU - 0.37 W/kg (head) 0.51 W/kg (body)
Music and Audio
Music and Audio — specifications for Q51, Galaxy Alpha.
SpecificationQ51Galaxy Alpha
Radio
  • No
  • No
Others Unknown
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for Q51, Galaxy Alpha.
SpecificationQ51Galaxy Alpha
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass - MIL-STD-810G compliant
  • Sensors Fingerprint (front-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • heart rate - ANT+ - Versions: G850F (Europe); G850T (T-Mobile)
  • G850M (Vodafone); G850FQ; G850Y Also known as Samsung Galaxy Alfa