Few 55-inch sets pair a native 144Hz panel with a proper subwoofer, and that combination is what the Z670SK brings. It is a quantum-dot 4K TV with 128 local dimming zones behind a direct LED backlight, a 2.1-channel sound system, four HDMI inputs and Google TV. Note the name: this is the Z670SK, a different set from the Mini LED Z670SP and from the earlier Z670NK. It comes only in 50 and 55 inches in Hong Kong, which makes it a gaming set built for bedrooms and smaller rooms.
Key features
Native 144Hz with Game Mode Pro
Toshiba Hong Kong's spec sheet lists a 144Hz refresh rate for the 55-inch model, and the product page describes it as 4K 144Hz Game Mode Pro. A console or PC sending a high-frame-rate signal is displayed at that rate instead of being capped at 60Hz.
128-zone full-array local dimming
The backlight is split into 128 zones that dim and brighten independently, behind a quantum-dot colour layer. In a dark bedroom that means night scenes and letterbox bars stay darker than on a set with a uniformly lit backlight.
2.1 sound with a 20W subwoofer
The Z670SK carries two 10W main speakers plus a 20W subwoofer, with Dolby Atmos and Dolby Digital. A 55-inch set is often wall-mounted in a bedroom with no room for a soundbar, so bass from the TV itself is useful.
Google TV with far-field voice
The Z670SK runs Google TV with Google Assistant and far-field voice control, plus AirPlay 2 and Google Cast. Netflix, YouTube and Prime Video come preinstalled.
Specifications
| Specification | Detail |
|---|---|
| Screen size | 55 inches |
| Panel | Quantum dot, direct LED backlight, full-array local dimming (128 zones) |
| Resolution | 3840 x 2160 (4K UHD) |
| Refresh rate | 144Hz |
| Gaming | Game Mode Pro |
| HDR | HDR10+ (the HDR format listed on Toshiba Hong Kong's spec sheet) |
| Picture modes | Filmmaker Mode |
| Audio | 2.1 channel, 2 x 10W + 20W subwoofer, Dolby Atmos, Dolby Digital |
| Smart platform | Google TV, Google Assistant, far-field voice |
| HDMI | 4 inputs (one with eARC) |
| Other inputs | 2 x USB, composite AV, optical audio out, 3.5mm headphone, Ethernet |
| Wireless | Wi-Fi 5 dual band, Bluetooth 5.3, AirPlay 2, Google Cast |
| Tuner | Digital terrestrial — receives Hong Kong free-to-air channels natively |
| Wall mount (VESA) | 400 x 200 mm |
| Dimensions | 1226 x 713 x 77 mm without stand; 1226 x 763 x 287 mm with stand |
| Weight | 13.5 kg (net) |
| Energy label | Grade 2 |
Who it's for
- Gamers who want high-refresh play in a bedroom or small room, where a larger set would not fit — check with our size calculator.
- Buyers who prefer Google TV and want four HDMI inputs for a console, a PC, a set-top box and an eARC soundbar.
- Rooms without space for a soundbar: the 20W subwoofer gives real low end on its own.
- Not for viewers who only watch broadcast and streaming drama. Nothing on free-to-air TV or Netflix is delivered above 60Hz, so a 60Hz set covers that use.
Warranty and delivery
This is Hong Kong licensed stock carrying the manufacturer's Hong Kong warranty. The exact warranty term is stated on the warranty card supplied with the set. Viewing is available by appointment at our Kwun Tong showroom.
For a 55-inch set, delivery with tabletop installation is HK$300, or delivery with wall mounting is HK$600 with the bracket included. Collection at the Kwun Tong shop is free. Walk-up buildings add HK$100 per floor with no cap. Discovery Bay adds HK$500. Cheung Chau and Lamma are delivered to the Central pier for self-collection, with no installation.
Frequently asked questions
Is the Z670SK the same as the Z670SP? No. The Z670SP is Toshiba's QD-Mini LED model. The Z670SK is a quantum-dot set with a direct LED backlight and 128 dimming zones, running Google TV with a 2.1-channel speaker system including a subwoofer.
Is it related to the Z670NK? Both are 144Hz quantum-dot Google TVs, but the Z670SK is a separate 2026 model sold in 50 and 55 inches in Hong Kong. Compare the specification tables rather than assuming they are identical.
Does it support Dolby Vision? Toshiba Hong Kong's spec sheet lists HDR10+ as the HDR format for the Z670SK and does not list Dolby Vision, so we do not claim it. If Dolby Vision matters to you, the Z570SP and Z670SP both list Dolby Vision IQ.