The Z670SP puts Toshiba's QD-Mini LED backlight, REGZA Engine ZRi and native 144Hz panel into a 55-inch frame only 55 mm deep without its stand. That makes it the pick for a bedroom, study or smaller living room where you still want Mini LED contrast and full gaming support. It is the smallest size of Toshiba Hong Kong's 2026 Mini LED line, which runs from 55 to 100 inches.
Key features
QD-Mini LED backlight
Mini LEDs are far smaller than conventional backlight LEDs, so more of them fit behind the panel and light can be controlled more finely. Paired with quantum-dot colour covering at least 90% of DCI-P3, the 55-inch model is rated at 400 nits typical and 600 nits peak brightness. Closer seating in a small room makes halo around subtitles and bright objects easier to notice, which is where finer backlight control helps.
REGZA Engine ZRi with a full HDR list
Toshiba's top REGZA Engine ZRi handles AI upscaling, scene analysis and HDR tone mapping, with REGZA Intelligence adjusting picture and sound to the content. HDR support is broad: HDR10, HDR10+, HDR10+ Adaptive, HDR10+ Gaming, Dolby Vision, Dolby Vision IQ and Dolby Vision Game.
Native 144Hz with VRR and FreeSync Premium
The panel refreshes natively at 144Hz. VRR, AMD FreeSync Premium and ALLM are all supported, and four HDMI inputs mean a console, a PC and a soundbar can stay connected. Toshiba lists eARC on HDMI for sending Dolby Atmos to a soundbar.
Front-firing four-driver sound
The 55-inch Z670SP uses four drivers in a 2.0-channel front-firing layout, rated 2 x 10W + 2 x 10W, with Dolby Atmos and Eilex processing. Sound is aimed at the viewer rather than down at the wall or TV cabinet, which keeps dialogue clear at moderate volume in a bedroom.
Specifications
| Specification | Detail |
|---|---|
| Screen size | 55 inches |
| Panel | QD-Mini LED backlight, quantum-dot colour (≥90% DCI-P3), backlight control and dynamic backlight |
| Resolution | 3840 x 2160 (4K UHD) |
| Native refresh rate | 144Hz (panel refresh rate); smooth motion rate 240 |
| Brightness | 400 nits typical, 600 nits peak |
| Gaming | VRR, AMD FreeSync Premium, ALLM, Game Mode Pro |
| Picture processing | REGZA Engine ZRi, REGZA Intelligence AI |
| HDR | HDR10, HDR10+, HDR10+ Adaptive, HDR10+ Gaming, Dolby Vision, Dolby Vision IQ, Dolby Vision Game |
| Audio | 2.0 channel, 4 front-firing drivers, 2 x 10W + 2 x 10W, Dolby Atmos, Eilex processing |
| Smart platform | VIDAA with voice control |
| HDMI | 4 inputs (eARC supported) |
| Other inputs | 1 x USB 3.0, 2 x RF, optical audio out, Ethernet |
| Wireless | Wi-Fi 5 dual band, Bluetooth 5.4, AirPlay, Miracast |
| Tuner | Digital terrestrial — receives Hong Kong free-to-air channels natively |
| Dimensions | 1226 x 722 x 55 mm without stand; 1226 x 776 x 287 mm with stand |
| Weight | 12.3 kg with stand; 11.1 kg without stand |
| Energy label | Grade 2 |
Who it's for
- Film fans watching in a dark bedroom or study, where Mini LED backlight control shows most and a 55-inch screen fits the room — check with our size calculator.
- Console and PC gamers who want native 144Hz, VRR and FreeSync Premium together with Toshiba's top picture processing.
- Wall-mount installs where a slim 55 mm body sits closer to the wall.
- Not the best fit for bright rooms with the curtains open most of the day. Ambient light hides much of the Mini LED advantage, and the Z570SP has the same 144Hz gaming features.
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
How is QD-Mini LED different from the Z570SP? Both have quantum-dot colour and native 144Hz panels. The Z670SP's Mini LED backlight uses much smaller LEDs for finer light control, and the 55-inch model is rated brighter (400 nits typical, 600 peak versus 350 typical). It also has four HDMI inputs and a four-driver speaker system.
Does the 55-inch Z670SP have a subwoofer? No. Toshiba lists the 55-inch model as a 2.0-channel system with four front-firing drivers. Only the 100-inch Z670SP has a 2.1-channel layout.
Which smart platform does it use? Toshiba Hong Kong lists VIDAA as the smart platform, with voice control and the VIDAA app store; Netflix, YouTube and the other main streaming apps run on it.