LG G8X ThinQ vs. LG G8 ThinQ: A Deep Dive into Battery, Display, and Value

The LG G8 ThinQ and G8X ThinQ represent interesting points in LG's flagship history. The G8 offered a unique Hand ID unlock and a solid feature set, while the G8X introduced the Dual Screen accessory and, crucially, a substantial battery upgrade. This comparison dissects the core differences between these two Snapdragon 855-powered devices, focusing on where each excels and who will benefit most.
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🏆 Quick Verdict

For most users, the LG G8X ThinQ is the superior choice. Its 111-hour endurance rating, a 40% improvement over the G8's 79 hours, addresses a key weakness of the original. While the G8 boasts a brighter display, the G8X's extended battery life provides a more consistently positive user experience.

PHONES
Phone Names LG G8 ThinQ LG G8X ThinQ
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1900 / 2100HSDPA 850 / 900 / 1900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 48, 66, 71 - USA1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 28, 32, 38, 39, 40, 41
SpeedHSPA 42.2/5.76 Mbps, LTE Cat19 1600/150 MbpsHSPA 42.2/5.76 Mbps, LTE Cat20 1960/75 Mbps
TechnologyGSM / CDMA / HSPA / EVDO / LTEGSM / CDMA / HSPA / EVDO / LTE
 2, 3, 4, 5, 7, 13, 20, 28, 46, 48, 66 - Verison1, 2, 3, 4, 5, 7, 12, 14, 20, 29, 30, 38, 39, 40, 41, 46, 66 - USA
Launch
Announced2019, February 24. Released 2019, April 112019, September 06. Released 2019, November 01
StatusDiscontinuedDiscontinued
Body
BuildGlass front (Gorilla Glass 5), glass back (Gorilla Glass 6), aluminum frameGlass front (Gorilla Glass 6), glass back (Gorilla Glass 5), aluminum frame
Dimensions151.9 x 71.8 x 8.4 mm (5.98 x 2.83 x 0.33 in)159.3 x 75.8 x 8.4 mm (6.27 x 2.98 x 0.33 in)
SIM· Nano-SIM· Nano-SIM + Nano-SIM· Nano-SIM· Nano-SIM + Nano-SIM
Weight167 g (5.89 oz)192 g (6.77 oz)
 IP68 dust/water resistant (up to 1.5m for 30 min) MIL-STD-810G compliant* Method 516.6, Procedure IV "Transit Drop" *does not guarantee ruggedness or use in extreme conditionsIP68 dust/water resistant (up to 1.5m for 30 min) MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
Display
ProtectionCorning Gorilla Glass 5Corning Gorilla Glass 6
Resolution1440 x 3120 pixels, 19.5:9 ratio (~564 ppi density)1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)
Size6.1 inches, 91.0 cm2 (~83.5% screen-to-body ratio)6.4 inches, 100.5 cm2 (~83.3% screen-to-body ratio)
TypeP-OLED, HDR10OLED, HDR10
 Always-on displayAlways-on display
Platform
CPUOcta-core (1x2.84 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.78 GHz Kryo 485)Octa-core (1x2.84 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.78 GHz Kryo 485)
ChipsetQualcomm SM8150 Snapdragon 855 (7 nm)Qualcomm SM8150 Snapdragon 855 (7 nm)
GPUAdreno 640Adreno 640
OSAndroid 9.0 (Pie), upgradable to Android 11Android 9.0 (Pie), upgradable to Android 12
Memory
Card slotmicroSDXC (dedicated slot) - single-SIM modelmicroSDXC (uses shared SIM slot) - dual-SIM modelmicroSDXC (uses shared SIM slot) - dual-SIM model
Internal128GB 6GB RAM128GB 6GB RAM
 UFS 2.1UFS 2.1
Main Camera
Dual-12 MP, f/1.8, 27mm (wide), 1/2.55", 1.4µm, dual pixel PDAF, OIS 13 MP, f/2.4, 9mm (ultrawide), 1.0µm
Dual or Triple12 MP, f/1.5, 27mm (standard), 1/2.55", 1.4µm, dual pixel PDAF, OIS 16 MP, f/1.9, 16mm (ultrawide), 1/3.1", 1.0µm, no AF or 12 MP, f/1.5, 27mm (standard), 1/2.55", 1.4µm, dual pixel PDAF, OIS 16 MP, f/1.9, 16mm (ultrawide), 1/3.1", 1.0µm, no AF 12 MP, 52mm (telephoto), f/2.4, 1.0µm, 2x optical zoom, dual pixel PDAF, OIS-
FeaturesLED flash, HDR, panoramaDual-LED dual-tone flash, HDR, panorama
Single-3.15 MP, AF
Video4K@30/60fps, 1080p@30/60fps, 720p@240fps, HDR10, 24-bit/192kHz stereo sound rec.4K@30/60fps, 1080p@30/60/240fps, 24-bit/192kHz stereo sound rec., gyro-EIS
Selfie camera
FeaturesHDRHDR
Single8 MP, f/1.7, 26mm (wide), 1/3.6", 1.22µm, AF TOF 3D, f/1.4, (depth/biometrics sensor)32 MP, f/1.9, 26mm (wide), 1/2.8", 0.8µm
Video1080p@60fps4K@30fps, gyro-EIS
Sound
3.5mm jack YesYes
35mm jackYesYes
Loudspeaker YesYes, with stereo speakers
 32-bit/192kHz audio32-bit/192kHz audio 24-bit/192kHz audio recording Tuned by Meridian Audio
Comms
Bluetooth5.0, A2DP, LE, aptX HD5.0, A2DP, LE, aptX HD
NFCYesYes
PositioningGPS, GLONASS, GALILEO, BDSGPS, GLONASS, GALILEO, BDS
RadioFM radio (market/region dependent)FM radio
USBUSB Type-C 3.1, OTGUSB Type-C 3.1, OTG
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNAWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA
Features
Browser-HTML, Adobe Flash
SensorsFace ID, Hand ID, fingerprint (rear-mounted), accelerometer, gyro, proximity, compass, barometerFingerprint (under display, optical), accelerometer, gyro, proximity, compass, barometer
Battery
Charging21W wired, PD, QC3 9W wireless21W wired, PD, QC3 9W wireless
Talk time-Up to 12 h (multimedia)
TypeLi-Po 3500 mAh, non-removableLi-Po 4000 mAh, non-removable
Misc
ColorsPlatinum Gray, New Aurora Black, New Moroccan Blue, Carmine RedNew Aurora Black
ModelsLMG820QM7, LM-G820UMB, LMG820UM0, LMG820UM1, LMG820UM2, LM-G820N, LM-G820, LM-G820QMLMG850EMW, LM-G850, 901LG, LM-G850N
PriceAbout 350 EURAbout 560 EUR
SAR-1.12 W/kg (body)    
SAR EU-0.90 W/kg (head)    
Tests
Audio quality Noise -94.1dB / Crosstalk -87.6dB Noise -93.2dB / Crosstalk -93.4dB
Battery life Endurance rating 79h Endurance rating 111h
Camera Photo / Video Photo / Video
Display Contrast ratio: infinite Contrast ratio: Infinite (nominal)
Loudspeaker Voice 68dB / Noise 74dB / Ring 92dB -24.9 LUFS (Very good)
Performance AnTuTu: 331537 (v7), 362730 (v8) GeekBench: 10735 (v4.4), 2700 (v5.1) GFXBench: 20fps (ES 3.1 onscreen) AnTuTu: 339726 (v7), 411980 (v8) GeekBench: 11251 (v4.4), 2870 (v5.1) GFXBench: 38fps (ES 3.1 onscreen)

LG G8 ThinQ

  • Brighter display for outdoor visibility
  • Potentially lower price point (due to age)
  • Similar performance to the G8X

  • Significantly shorter battery life
  • Requires more frequent charging
  • May not last a full day with heavy use

LG G8X ThinQ

  • Exceptional battery life (111h endurance)
  • More reliable all-day performance
  • Compatibility with Dual Screen accessory

  • Slightly dimmer display
  • May be more expensive than the G8
  • Same chipset as the older G8

Display Comparison

The LG G8 ThinQ features a display capable of reaching 655 nits of peak brightness, making it more visible in direct sunlight compared to the G8X's 603 nits. Both displays boast an infinite contrast ratio, typical of OLED panels. However, the difference in brightness is the primary distinction. While both offer excellent color reproduction, the G8's higher peak brightness is a tangible benefit for outdoor users. The G8X's display, while slightly dimmer, is still perfectly adequate for indoor use and benefits from the longer battery life to offset the brightness difference.

Camera Comparison

Both devices share the same 'Photo / Video' camera designation in the provided data, indicating a similar camera system. Without specific sensor details, it's difficult to draw definitive conclusions. However, LG's flagship phones typically prioritize image quality and versatility. The absence of information regarding sensor size or aperture makes a detailed comparison impossible. It's reasonable to assume both phones offer a competent camera experience, but neither stands out as a clear winner based on the available data. We can assume both phones have similar image processing pipelines.

Performance

Both the LG G8 ThinQ and G8X ThinQ are powered by the Qualcomm Snapdragon 855 (7nm) chipset, featuring an octa-core CPU configuration (1x2.84 GHz Kryo 485, 3x2.42 GHz Kryo 485, and 4x1.78 GHz Kryo 485). This means performance in everyday tasks and demanding applications will be virtually identical. Neither device specifies RAM speed, but both likely utilize LPDDR4X. Thermal management is also expected to be similar, with the Snapdragon 855 being known for relatively efficient performance. The lack of a newer chipset is a limitation for both, but the focus here is on the differences *between* the two.

Battery Life

The most significant difference lies in battery life. The LG G8X ThinQ boasts an endurance rating of 111 hours, a substantial improvement over the G8 ThinQ's 79 hours. Both support 21W wired charging with Power Delivery (PD) and Quick Charge 3 (QC3), as well as 9W wireless charging. This means charging speeds are comparable. However, the G8X's larger battery capacity translates to significantly longer usage between charges, making it ideal for power users or those who frequently travel. The G8's shorter battery life may require more frequent top-ups.

Buying Guide

Buy the LG G8 ThinQ if you prioritize a brighter display for outdoor visibility and are comfortable with carrying a power bank or charging frequently. It's a good option if you find a significantly discounted price. Buy the LG G8X ThinQ if battery life is paramount, you anticipate heavy usage, or you're interested in the optional Dual Screen accessory. The G8X offers a more reliable, all-day experience without compromising performance.

Frequently Asked Questions

❓ Does the Snapdragon 855 in either phone struggle with modern apps or games?
While the Snapdragon 855 is not the latest chipset, it remains capable of handling most modern apps and games. However, you may experience some frame drops or longer loading times in the most demanding titles compared to phones with newer processors. Both phones share the same chipset, so performance will be similar.
❓ Is the LG G8X's Dual Screen accessory worth the investment?
The Dual Screen accessory effectively doubles your screen real estate, enhancing multitasking and productivity. However, it adds bulk and requires an additional purchase. It's best suited for users who frequently need to run multiple apps simultaneously or enjoy mobile gaming with a larger display.
❓ How does the charging speed compare between the G8 and G8X, considering their battery sizes?
Both phones support 21W wired charging, so the 0-100% charge time will be similar, despite the G8X having a larger battery. The G8X's larger battery simply takes longer to deplete, making the longer charging time less noticeable in practical use.