![LG 55UA73006LA 55-Inch 4K Ultra HD HDR Smart TV (webOS 25 Platform with AI Concierge, alpha 7 AI Processor 4K Gen8, Game Optimiser & ALLM, 60Hz) [Model 2025]](https://m.media-amazon.com/images/I/41el3jTRY3L._SL160_.jpg)
Buying Guide
How to Buy a 4K Smart TV
This short guide helps you choose a 4K smart TV quickly and confidently. It summarises the key things to check, the main types you will see, the specs that matter, where to buy and practical tips to avoid common pitfalls.
Key factors and types to consider
Consider these points first and match them to how you watch TV.
- Room and viewing distance: a 55 inch screen suits most living rooms; for 4K aim for about 1.2 to 2.0 metres between seating and screen.
- Room light levels: choose an OLED-type panel for deep blacks in a dark room and an LED/QLED-type panel for bright rooms where peak brightness matters.
- Primary use: movies and streaming, gaming, or mixed use. Gaming favours higher refresh rates and HDMI 2.1 features; films favour wide colour and HDR performance.
- Budget: expect realistic prices in the mid and upper ranges as features increase; the sample range here runs from around £379 to £879.
Important features and specifications to check
Look for these specs on the product page and product box
- Resolution and upscaling: 4K is standard; good upscaling or an AI processor improves lower resolution content.
- Panel type: OLED for perfect blacks and contrast, QLED/Quantum Dot for stronger colour volume and brightness, standard LED for value.
- HDR formats: check support for Dolby Vision, HDR10, HDR10+ and HLG; Dolby Vision usually gives better dynamic tone mapping for films.
- Local dimming and zones: more zones improve contrast; some models offer dozens of dimming zones for deeper blacks.
- Refresh rate and motion: 60Hz is fine for TV and movies; look for 120Hz or higher for gaming and sports to reduce blur.
- Gaming features: HDMI 2.1, variable refresh rate, auto low latency mode and low input lag are essential for modern consoles and fast gaming.
- Audio connectivity: eARC for sending high quality sound to a soundbar, Dolby Atmos support for immersive audio.
- Smart platform and voice control: check the app ecosystem and whether voice assistants are built in. Consider privacy controls for always-listening microphones.
- Ports and inputs: ensure enough HDMI and USB ports, and that at least one HDMI supports 2.1 if you need it.
Where to buy and practical buying considerations
Decide between online convenience and in-store testing
- Online benefits: wider selection, easier price comparison and frequent deals. Check delivery options, installation and returns policy before purchase.
- In-store benefits: see real pictures, judge motion handling, brightness and viewing angles. Use demo content rather than store loops when possible.
- Delivery checks: measure doorways and lifts, confirm whether the retailer offers two-person delivery or installation for large screens.
- Warranty and aftercare: check manufacturer warranty length and what it covers, and whether extended plans or installation services are offered.
- Price tracking: watch for seasonal sales and cashback offers. Consider retailers offering monthly payments if you prefer spreading cost.
Common mistakes to avoid and quick expert tips
Avoid these frequent errors and follow these fast tips
- Do not buy solely on resolution or brand. Picture processing, panel type and HDR handling make the biggest real-world difference.
- Do not ignore ports. Lack of an HDMI 2.1 input can limit console performance.
- Do not assume every smart platform has the same apps or updates; check that your must-have apps are supported.
- Measure first. If the TV will be wall-mounted, confirm VESA specs and clearance for cables and soundbars.
- Expert tips: enable Game Mode for consoles, update firmware on arrival, run a basic picture calibration or pick a cinema/movie picture mode, and pair a compact soundbar with eARC for much better audio.
Final Thoughts
Match screen type and features to your room and habits, prioritise panel type, HDR support and the right inputs, and check delivery and warranty terms before you buy. If you want cinema blacks pick an OLED-type panel; if you sit in a bright room pick a high-brightness QLED/LED option. Measure, compare and buy from a retailer that offers a straightforward returns and installation service.
![LG 55QNED70A6A 55-Inch 4K UHD Smart TV (α7 AI Processor, Amazon Alexa, 60Hz) [Model 2025]](https://m.media-amazon.com/images/I/51IxYcelGKL._SL160_.jpg)