Expert Reviews
4.00 / 5
Original rating: 4 / 5
70-inch 70GK4245K
Read Expert Reviews reviewChecked 24 Sep 2026
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4.0
Based on 3 critic reviews
Summary: The Sharp GK4245K is a UK television range. Verified sizes currently include 70 inch. The 70-inch Sharp 70GK4245K is a UK television with 3840 x 2160 pixels resolution. It uses LED display technology. Its listed native refresh rate is 60 Hz. Smart TV features run on TiVo. Specifications may differ between sizes.
Specifications
Product:
Sharp GK4245K
Brand:
Sharp
Variations:
70 inch
Maximum Resolution:
3840 x 2160 pixels
Refresh Rate:
60 Hz
HDR:
Dolby Vision, High Dynamic Range 10 (HDR10), Hybrid Log-Gamma (HLG)
HDMI:
3
Wifi:
Yes
Expert reviews. One COR Score.
Sharp GK4245K reviews
Brand: Sharp
4.00out of 5
The Sharp GK4245K is an LED TV range. Verified UK models include the 70-inch screen size.
Explore screen sizes
The product, explained
About the Sharp GK4245K
The Sharp GK4245K is an LED TV range. Verified UK models include the 70-inch screen size.
The display resolution is 3840 x 2160 pixels. HDR support includes Dolby Vision, High Dynamic Range 10 (HDR10), Hybrid Log-Gamma (HLG). This 4K UHD pixel count is four times that of Full HD, providing the resolution needed to display compatible 4K programmes, films and games in their original pixel dimensions.
The specified refresh rate is 60 Hz. Smart TV features run on TiVo. The number of HDMI inputs is 3. A 60Hz refresh specification corresponds to 60 display updates per second. It is separate from the response time and input lag measured in a review. The HDMI inputs allow separate source devices to stay connected, such as a games console, set-top box and streaming player. Check the individual port specifications for features such as eARC and high-refresh-rate gaming.
The number of USB 2.0 ports is 2. Wi-Fi support is recorded as Yes.
The Sharp GK4245K catalogue includes 1 verified UK model option. The specifications below identify each model separately, while the COR Score combines critic ratings for the range.
- Resolution
- 3840 x 2160 pixels
- HDR
- Dolby Vision, High Dynamic Range 10 (HDR10), Hybrid Log-Gamma (HLG)
- Refresh rate
- 60 Hz
- HDMI inputs
- 3
Independent perspectives
Expert reviews 3
Independent ratings, converted to the same five-point scale. Each card links to the original review.
Trusted Reviews
4.00 / 5
Original rating: 4 / 5
70-inch 70GK4245K
Read Trusted Reviews reviewChecked 24 Oct 2026
What Hi-Fi?
4.00 / 5
Original rating: 4 / 5
Model family review; see source for the tested size.
Read What Hi-Fi? reviewChecked 24 Oct 2026
Independent reviews, made comparable
What does the COR Score mean?
One consistent scale makes different publishers’ ratings easier to compare. The original review still tells you why a critic reached that verdict.
Read our scoring methodology →Scale conversion · example
8/ 104.00/ 5
An illustration of conversion, not this TV’s rating.
Check the match
Identify the TV range and the version reviewed. Check the reviewed version alongside the specifications for your chosen size.
Compare on one scale
Convert usable ratings to five points, count each publisher once and give each critic equal weight.
Require three critics
Show the average to two decimal places after three distinct critics. Otherwise display tbd, keeping individual reviews visible.
Find the best fit by considering the score alongside the critic count, review dates, tested size and the strengths that matter to you. A range score brings together the included reviews; it is not a separate test of every screen size.
Know exactly what you’re buying
Specifications by screen size
Choose an exact UK model. Specifications and supplied accessories can differ between sizes and editions.
70-inch 4T-C70GK4245KB
UK model 4T-C70GK4245KB
Availability: Historic| Screen Size | 70 inch |
|---|---|
| Resolution | 3840 x 2160 pixels |
| HD type | 4K Ultra HD |
| Display technology | LED |
| HDR (High Dynamic Range) | Dolby Vision, High Dynamic Range 10 (HDR10), Hybrid Log-Gamma (HLG) |
| Refresh Rate | 60 Hz |
|---|
| HDMI | 3 |
|---|---|
| USB 2.0 ports | 2 |
| Wi-Fi | Yes |
| Smart TV platform | TiVo |
|---|
Specification source: Icecat product 122799781 · Checked 24 Sep 2026
More details for this exact model
Icecat product 122799781 · Checked 24 Sep 2026. Manufacturer specifications take precedence.
| Native aspect ratio | 16:9 |
|---|
| RMS rated power | 20 W |
|---|---|
| Audio decoders | Dolby Atmos, Dolby Digital, Dolby Digital Plus |
| Enhanced Audio Return Channel (eARC) | Yes |
| Smart TV | Yes |
|---|---|
| Operating system installed | TiVo |
| Panel mounting interface | 400 x 300 mm |
|---|---|
| Width (with stand) | 1556 mm |
| Depth (with stand) | 274 mm |
| Height (with stand) | 952 mm |
| Weight (with stand) | 19.8 kg |
| Width (without stand) | 1556 mm |
| Depth (without stand) | 82 mm |
| Height (without stand) | 906 mm |
| Power consumption (standby) | 0.5 W |
|---|---|
| Energy efficiency class (SDR) | E |
| Energy efficiency class (HDR) | G |
All additional specifications (67)
| Display diagonal | 177.8 cm (70") |
|---|---|
| LED backlight | Yes |
| Screen shape | Flat |
| Screen format adjustments | 4:3, 16:9 |
| Motion interpolation technology | Active Motion 400 |
| Contrast ratio (dynamic) | 1000000:1 |
| Display diagonal (metric) | 177 cm |
| Analog signal format system | PAL, SECAM |
| Digital signal format system | DVB-C, DVB-S, DVB-S2, DVB-T, DVB-T2 |
| Equalizer | Yes |
| Product colour | Black |
| Colour name | Black |
| Frameless design | Yes |
| Introduction year | 2024 |
| Subtitles function | Yes |
| Parental control | Yes |
| Headphone outputs | 1 |
| Electronic Programme Guide (EPG) | Yes |
| Sleep timer | Yes |
| Certification | UKCA, REACH/PAH/SCCP |
| Quick start guide | Yes |
| Languages in manual | 1 |
| Remote control included | Yes |
| Commodity Classification Automated Tracking System (CCATS) | 8528721000 |
| Batteries included | Yes |
| Battery type | AAA |
| Cleaning cloth | No |
| Country of origin | Poland |
| Number of speakers | 2 |
|---|---|
| Audio formats supported | AAC, AC3, DTS, EAC3, FLAC, LPCM, M4A, MP3, WAV |
| Digital audio optical out | 1 |
| Built-in speaker(s) | Yes |
| Ethernet LAN | Yes |
|---|---|
| Video formats supported | 3GP, 3GPP, ASF, AVI, DAT, FLV, MKV, MOV, MP4, MPG, TP, TRP, TS, VOB, WEBM |
| Image formats supported | BMP, GIF, JPEG, JPG, MPO, PNG |
| High Dynamic Range (HDR) supported | Yes |
| USB recording | Yes |
| HDMI version | 2.1 |
| Ethernet LAN (RJ-45) ports | 1 |
| USB 2.0 ports quantity | 2 |
| Number of batteries supported | 2 |
| Apple HomeKit support | No |
| Supported batteries | AAA |
| Tuner type | Analog & digital |
|---|---|
| Internet TV | Yes |
| Hybrid Broadcast Broadband TV (HbbTV) | Yes |
| Hybrid Broadcast Broadband TV (HbbTV) version | 2.0.3 |
| Video apps | All 4, Amazon Prime Video, BBC iPlayer, Disney+, Freely, My5, Netflix, UKTV Play, YouTube |
| Analogue tuner | No |
| DVB-T2 tuner | Yes |
| VESA mounting | Yes |
|---|---|
| Stand type | Legs stand |
| Package width | 1705 mm |
| Package depth | 160 mm |
| Package height | 1047 mm |
| Package weight | 27.3 kg |
| Mounting kit | No |
| Dimensions (W x D x H) with stand | 1556 x 952 x 274 mm |
| Stand | Yes |
| Dimensions (with stand) (WxHxD) | 1556 x 952 x 274 mm |
| Auto power off | Yes |
|---|---|
| Energy consumption (SDR) per 1000 hours | 92 kWh |
| Energy consumption (HDR) per 1000 hours | 175 kWh |
| AC input voltage | 220 - 240 V |
| AC input frequency | 50/60 Hz |
| Energy efficiency scale | A to G |
| Mains power | Yes |
Build your shortlist
TVs to compare with the Sharp GK4245K
Selected for shared screen sizes, display technology or brand. Compare the original reviews and today’s offers for the exact size you want.
| TV range | Why compare it? | Shared sizes | COR Score |
|---|---|---|---|
| Samsung U8000F reviews → | Another LED range. | 70 inches | 3.22/53 critic reviews |
| Philips PUS6504 reviews → | Another LED range. | 70 inches | tbd0 critic reviews · Available after 3 |
| Philips PUS6724 reviews → | Another LED range. | 70 inches | tbd0 critic reviews · Available after 3 |
| Samsung U8000H reviews → | Another LED range. | 70 inches | tbd0 critic reviews · Available after 3 |
Your questions, answered
Sharp GK4245K FAQs
How many expert reviews are available for Sharp GK4245K?
This page currently includes 3 scored critic reviews. Each publisher counts once. Follow the review cards for the original verdict and the version that was tested.
What is the COR Score for Sharp GK4245K?
The current COR Score is 4.00 out of 5, calculated from 3 distinct critics. Ratings are converted to a five-point scale and given equal weight; affiliate offers do not affect this calculation.
Which UK versions of Sharp GK4245K are listed?
The verified model options are 70-inch 4T-C70GK4245KB. Select the exact code in the specification section. A range review does not establish that each screen size was tested separately.
How should I compare retailer offers?
Match the complete UK model code, screen size, condition and included accessories. Check delivery, stock and the final total at the retailer. Search links help you find listings and are labelled separately from matched price offers.
Do all screen sizes have the same specifications?
Check the panel for your exact UK model. Dimensions, mounting points, accessories and other features can vary by size. Selecting a size also selects that model in the buying panel.
What is the difference between native refresh rate and VRR?
Native refresh rate describes the panel’s normal refresh specification. VRR lets the refresh rate follow a compatible game signal within a supported range. A quoted VRR maximum is not the native rate; check the source device, resolution and input together.
How do I check that this TV will fit my room?
Use the width and height for your selected model, then check the stand footprint or VESA mounting pattern. Allow room for cables and ventilation using the manufacturer’s installation guidance.
Should I add a soundbar?
Read the critic’s sound assessment first. A soundbar may suit a larger room or a preference for stronger bass and clearer dialogue. Check the TV and soundbar connection requirements, including eARC where supported.
Does every critic review cover my selected size?
The COR Score brings together reviews of the model range. Each card identifies the tested version where the publisher provides it. Use size-specific findings alongside the specification panel for the model you intend to buy.
Where can I compare other TVs?
Use the comparison table and TV buying guides on this page, or browse the TV category and brand directory. Compare review evidence, the features you will use and available prices together.
Understand your options
TV buying guides
Explore one topic in depth before making your shortlist.
Start with the complete TV buying guide →OLED vs Mini LED explainedUnderstand the differences in contrast, brightness and everyday viewing.Screen size & viewing distanceBalance viewing distance, furniture and the space around the screen.Gaming features & HDMIMake sense of refresh rates, VRR and the HDMI inputs you will use.Brightness & reflectionsConsider reflections, daylight and where everyone will sit.
