Panasonic 40" Premium 4K Ultra HD HDR LED Smart TV

Product Code: TX-40JX850B

Our price £649.99

In stock


Panasonic TX-40JX850B Premium 40-inch 4K Ultra HD LED Smart TV
Quay Television offer FREE local delivery of the Panasonic TX-40JX850B. We also have many services available including installation. Contact us for details on 01262 672870 email
Panasonic TX-40JX850B Premium 40-inch 4K Ultra HD LED Smart TV
Step-up LED picture performance for gamers, sports and streaming fans
The elegant Paasonic TX-40JX850 LED TV has an HDR Bright Panel Plus screen, ideal for any room. Our HCX AI Processor automatically adjusts the picture to suit the needs of fast-moving sport, video games, or the latest high-end drama series.
See it all. Feel it all.
4K LED TV with the power to bring the stadium to you. Sport demands outstanding performance and winning teams. Get the best seats in the stadium, look the players in the eye and see their every move clearly – so you never miss a thing. Add impressive sound – that brings the stadium to your home. Team-up with the Panasonic TX-40JX850 4K LED TV – to share those epic sporting moments with your family and friends.
Brilliant contrast, to heighten the drama
4K LED Smart TVs with HDR Bright Panel Plus screens are ideal for rooms with lots of natural light. Producing crisp colourful images and spectacular contrast - even on the brightest of days. Why wait until the evening to start streaming that series?
Spectacular sporting picture performance
HCX AI Processor - The new processor inside this model delivers accurate colour, contrast, and pin-sharp clarity – well suited to fast-moving action. Using AI, the TV knows when you’re watching sport, and adjusts the picture for you.
Impressive sound, that brings the stadium to you
Dolby Atmos® - A great picture is one thing, but it’s so much more involving when you add great sound. Our sound processing, with added immersive Dolby Atmos® technology, can make it feel like you’re sitting in the best seat in the stadium.
Optimal brightness and colour - in all conditions
Multi HDR Format - By supporting all HDR (High Dynamic Range) formats the Panasonic TX-40JX850 premium TV assure best possible performance - regardless of picture source. Brightness and colour are optimised scene-by-scene; whether the source is Dolby Vision, HLG, HDR10 or the new HDR10+ Adaptive format.
Your TV, customised to complement your lifestyle
Intuitive Smart TV
my Home Screen 6.0 - Access popular settings with a single button press. Pin favourites, like video streaming apps, to your Home Screen to see only what you use.
Your life in harmony with your television
my Scenery - Our new premium TVs can elevate your mood even when not actively watching. With my Scenery you can choose a selection of restful image and videos, or set your own, to reflect your mood or time of day. Perfect for mindfulness sessions or preparing for bed.
Easy TV Operation With Your Voice
Watch what you love, control it with your voice
Use your voice to jump to shows, control devices, and more - just ask Google.
Intuitive voice control enables seamless control experience
Alexa built-in is supported on selected models of 2021 TVs. Ask for the weather forecast, enjoy shopping at Amazon, play music and conduct intuitive operation of smart home devices by simply talking into the TV remote.


  • Make: Panasonic
  • Model: TX-40JX850B
  • Visible Screen Size (diagonal): 100 cm / 40 inches
  • Screen Resolution: 3,840 (W) x 2,160 (H)
  • Panel Technology: HDR Bright Panel Plus /4K LCD
  • Motion Technology: 4K 1600 Hz BMR IFC
  • Multi HDR Support: HDR10+ Adaptive/HDR10/HLG/DolbyVision/HLG 
  • Dimming/Contrast: Local Dimming Pro
  • Colour Space: Wide Colour Spectrum
  • Dolby Vision IQ: N/A
  • HDR10+ Adaptive: Yes
  • Filmmaker Mode: Yes (with intelligent sensing)
  • Processor/Engine: HCX AI Processor
  • Auto AI for Picture: Yes
  • Picture Mode: Auto AI/Dynamic/Normal/Cinema/True Cinema/FILMMAKER MODE/Custom/Sport/Game/DolbyVision (Vivid/Bright/Dark)
  • isf Mode: N/A
  • Calman READY: N/A
  • Sound: Dolby Atmos
  • Surround: Cinema Surround
  • Speaker Output: 20 W (10 W x 2)
  • Auto AI for Sound: N/A
  • Sound Mode: Standard/Music/Speech/Stadium/User
  • Smart Features: Smart TV
  • my Home Screen6.0: Yes
  • my Scenery: Yes
  • Google Assistant Built-in: Yes
  • Works with Google Assistant: Yes
  • Works with Alexa: Yes
  • Panasonic TV Remote 3 App (swipe & share): Yes
  • Home Network: Yes (Server / Client)
  • IP Home Control: Yes
  • Web Browser: Yes
  • Media Player: Yes (2.0)
  • Support Format: AVI/HEVC/MKV/WMV/MP4/M4v/FLV/3GPP/VRO/VOB/TS/PS/AV1, MP3/AAC/WMA Pro/FLAC/Apple Lossless/WAV, JPEG/HLG Photo
  • Wireless LAN Built-in: Yes 
  • Bluetooth: Yes
  • HID / HOGP (Keyboard/Mouse): A2DP (Stereo Audio: In Single / Out Dual)
  • Bluetooth Audio Link: Yes
  • HDMI Inputs: 3 (side: 2, rear: 1)
  • HDCP: Yes (HDCP2.3)
  • HDMI2.1: Yes
  • eARC (Enhanced Audio Return Channel): Yes (Input 2 )
  • ALLM (Auto Low Latency Mode ): Yes (All inputs)
  • HDMI Signal Power Link: Yes
  • USB: 2 (1 side, 1 rear; USB 3.0 x 1, USB 2.0 x 1)
  • Ethernet: 1
  • CI (Common Interface): 1 (CI Plus, Version 1.4, ECP)
  • Analogue Video Input: M3 x 1 (rear)
  • Digital Audio Output (Optical): 1 (rear)
  • Headphone Output: 1 (side; switchable to Subwoofer)
  • Alexa Built-in: Yes
  • Digital Tuner: DVB-T/T2
  • Analogue Tuner: Yes
  • FreeView: Yes w/ Quick look guide
  • Data Broadcasting: SD-MHEG
  • Teletext Reception: 1000P
  • USB-HDD Recording: Yes (w/ Rewind live TV)
  • Multi Window: PAT
  • HDAVI Control: Yes
  • Voice Guidance: Yes
  • EPG: Yes
  • Energy Efficiency Class: G
  • On mode Average Power Consumption: 54 kWh/1000h
  • Standby Power Consumption: 0.5 W
  • Off mode Power Consumption: 0.3 W
  • Power Supply: AC 220 - 240 V, 50/60 Hz
  • Rated Power Consumption: 90 W
  • Ambient Sensor (CATS): Yes
  • Included Accessory: TV Remote
  • Dimensions (W x H x D) (w/o stand): 901 x 517 x 63 mm
  • Dimensions (W x H x D) (with stand): 901 x 574 x 236 mm
  • Weight (w/o stand): 11.0 kg
  • Weight (with stand): 13.0 kg
  • Dimension Pedestal (W x D): 529 x 236 mm
  • VESA Compatible: Yes
  • VESA Dimension (W x H): 200 x 200 mm