LG 55MRGB88B9B

The LG 55MRGB88B9B is a 55-inch 4K gaming TV with Mini RGB evo technology (Mini LED), 144 Hz, 0.1 ms and alpha 8 Gen3 processor – Precision Dimming and 100% color coverage for gaming and film on one screen.

55 inches (139 cm): perfect for medium-sized rooms, bedrooms or as a second TV – with the full gaming feature set.

Why the LG 55MRGB88B9B?

Because it combines gaming speed with Mini LED picture quality. 144 Hz, 0.1 ms, NVIDIA G-Sync and AMD FreeSync Premium deliver a smooth picture without tearing; Precision Dimming controls the brightness zones for deep contrast. The RGB technology covers 100% DCI-P3 and Adobe RGB. webOS 26 makes it a full smart TV with all streaming services.

What you get

A gaming screen with TV comfort: 4K with 144 Hz and 0.1 ms, G-Sync and FreeSync Premium, plus Dolby Vision Gaming and Dolby Atmos. Tuned for both console and PC – HDR gaming and cinema from one device.

Who is the 55MRGB88B9B suited for – and who isn't it for?

Straight talk: The right size for medium rooms and as a fast gaming second TV. For a large living room with plenty of distance, 55 inches quickly feels small – then 65 inches and up is better. For cinema sound, plan for a soundbar.

What's the difference between the MRGB88 and MRGB96 series?

The 88 series (Mini RGB, alpha 8) is tuned for gaming: 144 Hz, 0.1 ms, G-Sync. The 96 series (Micro RGB, alpha 11) is the color flagship with triple color coverage including BT.2020 and more picture processing power. In short: 88 = gaming performance, 96 = maximum picture quality.

Our verdict

A compact gaming powerhouse: 55 inches of Mini RGB, 144 Hz, G-Sync – monitor speed with TV comfort. At HD Zürisee in Wädenswil, we set everything up with you.

Technical data – LG 55MRGB88B9B

• Screen size: 55 inches (139 cm)
• Panel: 4K Mini RGB evo AI (Mini LED, Precision Dimming)
• Processor: alpha 8 Gen3 AI
• Refresh rate: 144 Hz
• Response time: 0.1 ms
• Gaming: NVIDIA G-Sync, AMD FreeSync Premium, VRR, ALLM
• Connections: HDMI 2.1 (4K up to 144 Hz)
• Color coverage: 100% DCI-P3 / Adobe RGB
• HDR: Dolby Vision, HDR10, HLG
• Audio: Dolby Atmos
• Smart TV: webOS 26 (Google Gemini & MS Copilot)
• Dimensions & weight: detailed measurements on request – we'll give them to you exactly for wall mounting or furniture

Frequently asked questions

Does the TV also work well as a large gaming monitor?

Very well. 144 Hz, 0.1 ms and G-Sync deliver genuine monitor-level performance, plus TV comfort and webOS. Via HDMI 2.1 you connect a gaming PC or console directly; VRR and ALLM switch automatically into gaming mode. At 55 inches, it also fits well on a larger desk.

Does the 55-inch also work in a bedroom or as a second TV?

Yes, the 55-inch size is ideal for that: compact enough for a bedroom or guest room, yet still a full-fledged smart TV with gaming features. As a fast second TV next to the big living-room device, it's especially fun for gaming. We're happy to help you sort out wall mounting or furniture.

Why buy the LG 55MRGB88B9B at HD Zürisee?

Because a gaming TV lives on the right settings. We deliver, mount on the wall on request and set up picture mode, gaming features and sound with you – personally, with our own technician in Wädenswil. Free shipping from CHF 190.

Goes well with

A soundbar for spatial sound, a TV stand and home cinema speakers for the big picture.