Photo 1 of 3
LG OLED B4 · LG UK exact 48-inch model gallery; official product photograph, supplied studio background retained.
LG · OLED
OLED B4
A 2024 4K OLED series with an α8 processor, four HDMI 4K 120Hz inputs and webOS 24, offered in 48, 55, 65 and 77-inch UK sizes.
Model history · 9 models, 2016–2024
- Sizes
- 48–77″
- Panel
- OLED
- Refresh
- 120 Hz
- HDR
- Dolby Vision
- HDMI 2.1
- 4 of 4
- Software
- webOS
What reviewers say
TechRadar and HIFI.DE praise natural colours, deep blacks, wide viewing angles and comprehensive gaming connections. Both find HDR brightness below higher OLED ranges and recommend better speakers for fuller sound. They like the controls and app selection, although TechRadar criticises home-screen adverts and HIFI.DE finds some rival interfaces faster.
From techradar.com and hifi.de
Specifications
Report a wrong or missing specDisplay
- Panel
- OLED
- Panel detail
- Self-lit 4K OLED with pixel dimming
- Resolution
- 3840 × 2160 (4K)
- Refresh rate
- 120 Hz
- HDR formats
- Dolby Vision, HDR10, HLG
- Picture processing
- AI Picture Pro, α8 AI Super Upscaling 4K, AI Brightness Control, Dynamic Tone Mapping Pro and Filmmaker Mode
- Picture modes
- Personalised Picture Wizard, Vivid, Standard, APS, Cinema, Sports, Game, Filmmaker and ISF Expert bright/dark room modes
- Motion handling
- Native 120Hz panel; OLED Motion and HDMI 4K 120 fps input
Sizes
- Sizes
- 48, 55, 65, 77″
- Largest size
- 77″
Gaming
- HDMI ports
- 4 (all HDMI 2.1 at 4K 120 Hz+)
- Variable refresh rate
- HDMI VRR, FreeSync Premium, G-Sync Compatible
- Auto low latency mode
- Yes
- HDMI detail
- Four inputs support 4K 120Hz, VRR, ALLM and QMS; eARC on HDMI 3
- Variable refresh range
- LG specifies 40–120Hz
- Game features
- Game Optimiser and Dashboard, HGiG, AMD FreeSync Premium, NVIDIA G-SYNC Compatible and Dolby Vision gaming at 4K 120Hz
Smart TV and sound
- Smart TV platform
- webOS
- Processor
- α8 AI Processor 4K
- Speakers
- 20 W, 2.0 channels
- Dolby Atmos
- Yes
- eARC
- Yes
- Wi-Fi
- Wi-Fi 5
- Bluetooth
- 5.1
- Speaker detail
- Down-firing 2.0-channel speakers
- Audio features
- α8 AI Sound Pro with virtual 9.1.2 up-mixing, acoustic tuning, Clear Voice Pro, Bluetooth Surround Ready and WiSA up to 2.1 channels
- Voice assistants
- Built-in Amazon Alexa and LG intelligent voice recognition; supported languages vary by country
- Casting
- Apple AirPlay 2, ThinQ remote app and Multi View
- Software updates
- webOS 24; LG states four upgrades over five years with regional scheduling differences and security support through 31 December 2028. LG Australia's March 2024 launch notice confirms the range available now and lists 55/65-inch B4 March availability; release records that first confirmed series month, not a universal UK size-specific date.
- USB
- Two USB 2.0 ports
- Ethernet
- Ethernet LAN port
- Optical audio out
- One optical digital audio output
Design and power
- Size
- Without stand (W × H × D): 48″ 1070 × 620 × 45.9 mm; 55″ 1228 × 708 × 45.9 mm; 65″ 1449 × 832 × 45.9 mm; 77″ 1719 × 989 × 50.9 mm
- Stand
- With stand (W × H × D; weight): 48″ 1070 × 684 × 235 mm, 11.7 kg; 55″ 1228 × 772 × 235 mm, 14.5 kg; 65″ 1449 × 896 × 235 mm, 17.3 kg; 77″ 1719 × 1057 × 319 mm, 23.5 kg. Stand footprint: 48″ 933 × 235 mm; 55/65″ 1057 × 235 mm; 77″ 1403 × 319 mm.
- VESA pattern
- 300 × 200 mm across these UK sizes
- Power use
- Under 0.5 W standby; 100–240 V AC, 50–60Hz supply
- In the box
- Magic Remote MR24, two AA batteries and attached power cable
Sizes
| Size | Model | Weight without stand |
|---|---|---|
| 48″ | OLED48B46LA | 11.5 kg |
| 55″ | OLED55B46LA | 14.3 kg |
| 65″ | OLED65B46LA | 17.1 kg |
| 77″ | OLED77B46LA | 22.9 kg |
Pros and cons
Pros
- OLED pixel dimming
- Four HDMI 4K 120Hz inputs with VRR
- Dolby Vision gaming at 4K 120Hz
Cons
- No HDR10+ support
- 20 W two-channel speakers
Closest rivals
Model | Sizes | Panel | Refresh | HDR | HDMI 2.1 | Software | Released |
|---|---|---|---|---|---|---|---|
| 65–77″ | OLED | – | HDR10, HLG | 0 of 4 | my Home Screen | Jun 2017 | |
| 55–77″ | OLED | 120 Hz | Dolby Vision, HDR10+ | 2 of 4 | my Home Screen | 2022 | |
| 55–77″ | OLED | 120 Hz | Dolby Vision, HDR10+ | 2 of 4 | my Home Screen | Aug 2023 |
Previous model: OLED B3. Newer model: OLED B5.
Sources
- lg.com/uk/tvs-soundbars/oled/oled48b46la
- lg.com/uk/tvs-soundbars/oled/oled55b46la
- lg.com/uk/partners/tvs-soundbars/oled/oled65b46la
- lg.com/uk/tvs-soundbars/oled/oled77b46la
- lg.com/au/about-lg/press-and-media/lg-electronics-australia-announces-local-ava…
- techradar.com/televisions/lg-b4-review
- hifi.de/test/lg-oled-b4-test-202718
Photo: LG UK exact 48-inch model gallery; official product photograph, supplied studio background retained.
- LG OLED B4 55-inch OLED55B46LA, front view with supplied screen artwork: lg.com/content/dam/channel/wcms/uk/2024-promotions/euro-screenfills/oled/b4/b46…
- LG OLED B4 77-inch OLED77B46LA, front view with supplied screen artwork: lg.com/content/dam/channel/wcms/uk/2024-promotions/euro-screenfills/oled/b4/b46…
