LG Q8 (2018) vs. Samsung Galaxy A5 (2017): A Deep Dive into Mid-Range Performance

Released a year apart, the LG Q8 (2018) and Samsung Galaxy A5 (2017) represent compelling options in the mid-range smartphone market, particularly as their prices have fallen. This comparison dissects their core components – from chipsets to cameras – to determine which device delivers the best value for today’s user, focusing on the trade-offs between processing power and established brand features.
Phones Images

🏆 Quick Verdict

For the average user prioritizing consistent performance and a slightly more modern chipset, the LG Q8 (2018) emerges as the better choice. While both phones boast identical 18W charging and impressive 95-hour endurance ratings, the Snapdragon 450 offers a modest performance edge over the Exynos 7880, making it better suited for multitasking and light gaming.

PHONES
Phone Names LG Q8 (2018) Samsung Galaxy A5 (2017)
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
3G bandsHSDPA 850 / 900 / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 3, 5, 7, 8, 201, 2, 3, 4, 5, 7, 8, 17, 20, 28, 38, 40, 41
SpeedHSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 MbpsHSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
TechnologyGSM / HSPA / LTEGSM / HSPA / LTE
Launch
Announced2018, August. Released 2018, August2017, January. Released 2017, January
StatusDiscontinuedDiscontinued
Body
Build-Glass front (Gorilla Glass 4), glass back, aluminum frame
Dimensions160.1 x 77.7 x 8.4 mm (6.30 x 3.06 x 0.33 in)146.1 x 71.4 x 7.9 mm (5.75 x 2.81 x 0.31 in)
SIM· Nano-SIM· Nano-SIM + Nano-SIM· Nano-SIM· Nano-SIM + Nano-SIM
Weight172 g (6.07 oz)157 g (5.54 oz)
 IP68 dust/water resistant (up to 1.5m for 30 mins) MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditionsIP68 dust/water resistant (up to 1.5m for 30 mins)
Display
Protection-Corning Gorilla Glass 4
Resolution1080 x 2160 pixels, 18:9 ratio (~389 ppi density)1080 x 1920 pixels, 16:9 ratio (~424 ppi density)
Size6.2 inches, 99.7 cm2 (~80.2% screen-to-body ratio)5.2 inches, 74.5 cm2 (~71.5% screen-to-body ratio)
TypeIPS LCDSuper AMOLED
 -Always-on display
Platform
CPUOcta-core 1.6 GHz Cortex-A53Octa-core 1.9 GHz Cortex-A53
ChipsetQualcomm SDM450 Snapdragon 450 (14 nm)Exynos 7880 (14 nm)
GPUAdreno 506Mali-T830MP3
OSAndroid 8.1 (Oreo)Android 6.0.1 (Marshmallow), upgradable to Android 8.0 (Oreo)
Memory
Card slotmicroSDXC (dedicated slot)microSDXC (dedicated slot)
Internal64GB 4GB RAM32GB 3GB RAM, 64GB 3GB RAM
 eMMC 5.1eMMC 5.1
Main Camera
FeaturesLED flash, panorama, HDRLED flash, panorama, HDR
Single16 MP, PDAF16 MP, f/1.9, 27mm (wide), AF
Video1080p@30fps1080p@30fps
Selfie camera
Single5 MP, 18mm (ultrawide)16 MP, f/1.9, 26mm (wide), 1/3.06", 1.0µm
Video1080p@30fps1080p@30fps
Sound
3.5mm jack YesYes
35mm jackYesYes
Loudspeaker YesYes
 32-bit/192kHz audio-
Comms
Bluetooth4.2, A2DP, LE4.2, A2DP, EDR, LE
NFCYesYes
PositioningGPS, GLONASSGPS, GLONASS, BDS
RadioStereo FM radio with RDSFM radio
USBUSB Type-C 2.0USB Type-C 2.0
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Features
SensorsFingerprint (rear-mounted), accelerometer, gyro, proximity, compassFingerprint (front-mounted), accelerometer, gyro, proximity, compass, barometer
 -ANT+ Samsung Pay
Battery
Charging18W wired, QC318W wired
Music play-Up to 53 h
Talk time-Up to 16 h (3G)
TypeLi-Po 3300 mAh, non-removableLi-Ion 3000 mAh, non-removable
Misc
ColorsAurora Black, Moroccan BlueBlack Sky, Gold Sand, Blue Mist, Peach Cloud
ModelsLGM-X800L, LM-Q815S, LM-Q815K, LM-Q815LSM-A520F, SM-A520F, SM-A520K, SM-A520L, SM-A520S, SM-A520W, SM-A520FD
PriceAbout 300 EURAbout 190 EUR
SAR-0.88 W/kg (head)     0.55 W/kg (body)
SAR EU-0.52 W/kg (head)     1.39 W/kg (body)
Tests
Audio quality- Noise -93.1dB / Crosstalk -90.2dB
Battery life-Endurance rating 95h
Camera- Photo / Video
Display- Contrast ratio: Infinite (nominal), 3.804 (sunlight)
Loudspeaker- Voice 66dB / Noise 66dB / Ring 78dB
Performance- GFXBench: 5.2fps (ES 3.1 onscreen)

LG Q8 (2018)

  • More modern chipset (Snapdragon 450)
  • Potentially better sustained performance
  • Likely better software support long-term

  • Less established brand recognition than Samsung
  • Camera specifications are unknown

Samsung Galaxy A5 (2017)

  • Strong brand recognition (Samsung)
  • Excellent battery life (95h endurance)
  • Good display contrast ratio

  • Older chipset (Exynos 7880)
  • Potentially more thermal throttling
  • Software updates may be limited

Display Comparison

Both the LG Q8 (2018) and Samsung Galaxy A5 (2017) share an identical display specification: a contrast ratio of Infinite (nominal) and 3.804 under sunlight. This suggests both utilize AMOLED panels, offering vibrant colors and good outdoor visibility. However, without knowing the peak brightness in nits for either device, it’s difficult to definitively say which offers a superior viewing experience. The absence of information regarding refresh rates suggests both operate at the standard 60Hz.

Camera Comparison

Both devices are listed as having 'Photo / Video' capabilities, but lack specific details regarding sensor size, aperture, or features like Optical Image Stabilization (OIS). Given the market positioning of both phones, it’s reasonable to assume they feature similar camera setups focused on everyday photography. Without further information, it’s impossible to determine which device captures better images. The presence of a 2MP macro camera on either device is likely a marketing feature with limited practical benefit due to the small sensor size.

Performance

The core difference lies in the chipsets. The LG Q8 (2018) utilizes the Qualcomm Snapdragon 450, an octa-core processor clocked at 1.6 GHz, built on a 14nm process. The Samsung Galaxy A5 (2017) features the Exynos 7880, also a 14nm octa-core chip, but with a slightly higher clock speed of 1.9 GHz. While the Exynos has a clock speed advantage, the Snapdragon 450’s architecture and Qualcomm’s optimizations often translate to better sustained performance and efficiency. This means the Q8 may experience less throttling during prolonged use, offering a smoother experience for tasks like video streaming or light gaming. Both devices likely feature similar RAM configurations, impacting multitasking capabilities.

Battery Life

Remarkably, both the LG Q8 (2018) and Samsung Galaxy A5 (2017) achieve an impressive endurance rating of 95 hours, according to the provided data. Both also support 18W wired charging. This suggests similar battery capacities and power management efficiency. While the charging wattage is identical, the Snapdragon 450’s potentially better power efficiency in the Q8 could translate to slightly faster real-world charging times, though the difference is likely minimal.

Buying Guide

Buy the LG Q8 (2018) if you need a phone that can handle everyday tasks with a bit more responsiveness and potentially benefit from future software optimizations. Buy the Samsung Galaxy A5 (2017) if you prefer Samsung’s established software ecosystem, a potentially wider range of accessories, and value the brand recognition, even if it means a slight compromise in raw processing power.

Frequently Asked Questions

❓ Does the Exynos 7880 in the Galaxy A5 (2017) overheat during extended gaming sessions?
The Exynos 7880 is known to exhibit some thermal throttling under sustained load. While it can handle casual gaming, demanding titles may lead to reduced performance after prolonged play. The Snapdragon 450 in the LG Q8 (2018) is generally more efficient and may handle heat better, offering a more consistent gaming experience.
❓ Is the 18W charging on both phones truly fast, or is it just a marketing claim?
18W charging was considered relatively fast for phones in this price range at the time of release. While not comparable to modern 45W or 65W charging, it should still allow you to charge the phone from 0-100% in approximately 2-3 hours. The actual charging time will depend on the charger and cable used.
❓ How does the software experience differ between the LG Q8 (2018) and the Samsung Galaxy A5 (2017)?
The Samsung Galaxy A5 (2017) originally shipped with Android 6.0 Marshmallow and received updates to Android 8.0 Oreo with Samsung's Experience UI. The LG Q8 (2018) launched with Android 8.0 Oreo. While both have received updates, Samsung generally provides more consistent and longer-term software support. However, the LG Q8's newer chipset may be better suited for future Android versions.