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LG G3 (D855)
LG2014
LG FlagshipLegacy CellularReleased 2014

LG G3 (D855)

Full factory technical datasheet and laboratory hardware reference for the LG G3 (D855), featuring the Qualcomm Snapdragon 801 MSM8974AC (28nm), a 5.5" True HD-IPS LCD (First global major Quad HD display, 76.4% screen-to-body ratio) panel, and a 13MP optical camera system.

Platform / SoC
Qualcomm Snapdragon 801 MSM8974AC
Display
5.5" • 60Hz
Main Camera
13 MP OIS
Battery & Charging
3000 mAh • 9W
Weight & IP Rating
149g • None
Launch OS
Android 4.4.2 KitKat
Quick Technical Verdict & Summary

Hardware Engineering Overview: LG G3 (D855)

The LG G3 (D855) is a high-performance mobile computing device engineered around the Qualcomm Snapdragon 801 MSM8974AC (28nm) (4-core 2.5 GHz Krait 400, Adreno 330). It features a 5.5" True HD-IPS LCD (First global major Quad HD display, 76.4% screen-to-body ratio) at 2560 × 1440 px (538 ppi Quad HD) with 60Hz refresh rate and up to 450 nits peak brightness. Optics include a 13 MP 1/3.06" Sony IMX135 (OIS+, Infrared Laser Auto Focus 0.276s) primary sensor with hardware OIS paired with 1x zoom, powered by a 3000 mAh battery with 9W wired fast charging.

Compute & Processing Architecture
Qualcomm Snapdragon 801 MSM8974AC (28nm) equipped with 4-core 2.5 GHz Krait 400 and Adreno 330. Runs Android 4.4.2 KitKat with Knock Code.
Display & Luminescence Benchmarks
5.5" True HD-IPS LCD (First global major Quad HD display, 76.4% screen-to-body ratio) panel delivering 2560 × 1440 px (538 ppi Quad HD) (16:9) at 60Hz and 450 nits peak luminance.
Optics & Cinema Video Recording
13 MP 1/3.06" Sony IMX135 (OIS+, Infrared Laser Auto Focus 0.276s) sensor (f/2.4) with 1x. Video capture: 4K UHD at 30 fps, 1080p at 60 fps, 1W booster speaker.
Battery, Power & Build Metallurgy
3000 mAh battery with 9W wired fast charging. Chassis: Metallic-look brushed polycarbonate back (removable), floating arc rear ergonomics with None.

Complete Factory Specification Matrix

Verified hardware telemetry • Zero estimated pricing policy

6 CORE MODULES
01

Platform & Compute Architecture

System-on-Chip node fabrication, CPU core topology, and neural compute acceleration

System on Chip (SoC)Qualcomm Snapdragon 801 MSM8974AC (28nm)
CPU Microarchitecture & Cores4-core 2.5 GHz Krait 400
Graphics Processing Unit (GPU)Adreno 330
Memory / RAM Configurations2 GB / 3 GB LPDDR3
Internal Storage & Expansion16 GB / 32 GB (microSD up to 128GB)
02

Display & Visual Engineering

Panel luminescence, adaptive refresh dynamics, color bit depth, and glass protection

Display Panel TechnologyTrue HD-IPS LCD (First global major Quad HD display, 76.4% screen-to-body ratio)
Screen Diagonal Size5.5 inches
Native Resolution & Pixel Density2560 × 1440 px (538 ppi Quad HD)
Aspect Ratio16:9
Refresh Rate Range60 Hz
Peak Brightness Luminescence450 nits (Peak)
03

Camera Array & Computational Optics

Sensor format, physical aperture, optical stabilization, and cinema video pipeline

Primary Sensor Resolution13 Megapixels (MP)
Primary Sensor Format1/3.06" Sony IMX135 (OIS+, Infrared Laser Auto Focus 0.276s)
Primary Lens Aperturef/2.4
Optical Image Stabilization (OIS)Hardware Optical Stabilization (OIS)
Ultra-Wide SensorNo Dedicated Ultra-Wide Sensor
Telephoto & Periscope System1x
Master Video Recording Matrix4K UHD at 30 fps, 1080p at 60 fps, 1W booster speaker
Front Selfie Camera2.1 MP (f/2.0) — Video: 1080p at 30 fps
04

Battery & Power Dynamics

Cell chemical capacity, wired power delivery protocol, and wireless charging

Nominal Battery Capacity3000 mAh
Wired Fast Charging Peak Wattage9W Power Delivery
Wireless Inductive ChargingSupported (Up to 5W Wireless)
05

Chassis, Structural Build & Durability

Frame metallurgy, structural ingress protection, and physical dimensions

Structural Build & MetallurgyMetallic-look brushed polycarbonate back (removable), floating arc rear ergonomics
Ingress Protection (IP Rating)None
Physical Dimensions (H × W × D)146.3 × 74.6 × 8.9 mm
Total Weight149 g (5.26 oz)
06

Connectivity, Ports & Operating System

Launch firmware version, physical I/O connectors, cellular generations, and biometrics

Operating System at LaunchAndroid 4.4.2 KitKat
Physical Interface PortMicro-USB 2.0 (SlimPort)
Cellular & 5G Generation4G LTE Cat 4
Biometric Authentication HardwareKnock Code
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