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LG OLED AI B5 4K Smart TV 2025 vs Dyson OnTrac

These are not substitutes. The LG B5 is a 77-inch OLED TV for a living room; the Dyson OnTrac is a pair of over-ear noise-cancelling headphones. Buy the B5 if you want a big-screen upgrade, and the OnTrac if you want headphones. The B5's lowest price in the last few days was $995.00 on October 30, down from $1,499.99 on October 29. No price was given for the OnTrac.

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Class LG
LG OLED AI B5 4K Smart TV 2025

LG OLED AI B5 4K Smart TV 2025

4.7· 4,200 ratings

Choose the LG B5 if you are outfitting a room and want a 77-inch 4K OLED with 120 Hz refresh, four HDMI ports and Google Assistant, Alexa and Siri support.

Pros
  • 77-inch OLED panel with true per-pixel contrast
  • 120 Hz refresh suits sports and console gaming
  • Four HDMI ports cover a console, soundbar and two players
  • Google Assistant, Alexa and Siri all supported
  • 51.8 lb and 2 in deep, so it wall-mounts easily
Cons
  • Mains power only, no portability
  • No noise cancellation, since it is a TV
  • Price swung from $1,499.99 to $995.00 in two days, so timing matters

What separates them

LG OLED AI B5 4K Smart TV 2025Dyson OnTrac
Product type77-inch 4K OLED televisionOver-ear wireless headphones
Where you use itFixed in a room, on a stand or wall mountPortable, worn on the head
Screen or driver77-inch OLED panel, 3840 x 216040 mm drivers, 6 Hz to 21 kHz
Refresh rate120 HzNot applicable
BatteryMains powered, no batteryUp to 55 hours, USB-C, 30 minutes for 9 hours
Noise cancellationNoneActive noise cancellation
Connectivity4 HDMI, USB, Ethernet, Wi-Fi, Bluetooth, RFBluetooth 5.0, USB-C, 9 m range, no multipoint
Water resistanceNot rated

Price history

$1,499.99$249.99
Oct 29Oct 30
  • LG OLED AI B5 4K Smart TV 2025: lowest $995.00 on Oct 30 at Walmart.
  • Dyson OnTrac: lowest $249.99 on Oct 29.

Prices at every store

LG OLED AI B5 4K Smart TV 2025

  • Best BuyCheck price at Best Buy
  • WalmartCheck price at Walmart
  • Enervee CACheck price at Enervee CA
Prices and history →

Dyson OnTrac

  • Abt Electronics & AppliancesCheck price at Abt Electronics & Appliances
  • AmazonCheck price at Amazon
  • eBayCheck price at eBay
Prices and history →

Specs compared

SpecLG OLED AI B5 4K Smart TV 2025Dyson OnTrac
Resolution3840 x 2160—
High DefinitionYes—
HDTV Format4K—
ColorBlack—
Screen FormFlat—
Display TypeOLED—
Assistant SupportGoogle Assistant, Amazon Alexa, Siri—
HDRYes—
Refresh Rate120 Hz—
ConnectivityBluetooth, Wi-Fi, RF, USB, HDMI, Ethernet—
Supported Streaming Services

Questions and answers

Which is better for watching movies?
The LG B5, by a wide margin. It is a 77-inch 4K OLED with HDR and 120 Hz refresh, while the OnTrac is headphones with no screen.
Which lasts longer on a charge?
The OnTrac, up to 55 hours per charge. The B5 has no battery and runs from mains power.
Can the OnTrac replace a TV for late-night viewing?
Only for private listening on a phone or laptop. It has no display and no video input.
Is the B5 worth the extra money?
They serve different jobs, so compare within each category. The B5 hit $995.00 on October 30 after $1,499.99 on October 29, a $504.99 drop worth watching.
Does either work with a phone?
The OnTrac pairs over Bluetooth 5.0 with a smartphone or laptop. The B5 connects to phones over Bluetooth and Wi-Fi for streaming and casting.
Which is better for travel?
The OnTrac. It is portable with active noise cancellation; the B5 is a 51.8 lb TV that stays in one room.

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  • OLED panels can dim over many years of static content
  • Dyson
    Dyson OnTrac

    Dyson OnTrac

    Choose the Dyson OnTrac if you need wireless over-ear headphones with active noise cancellation, up to 55 hours of battery and a 30-minute charge for 9 hours of play.

    Pros
    • Up to 55 hours of battery life
    • 30-minute charge gives 9 hours of playback
    • Active noise cancellation for travel and commuting
    • Neutral sound profile with a bass boost option
    • USB-C charging
    Cons
    • No multipoint, so it pairs with one device at a time
    • Not water resistant, so sweat and rain are a risk
    • Bluetooth 5.0 only, with a 9 m range
    • No price was given, so value is hard to judge
    Not water resistant
    Netflix, Prime Video, YouTube, HBO, Disney+
    —
    Width67.7 in wide—
    Show all 38 specsShow fewer specs
    SpecLG OLED AI B5 4K Smart TV 2025Dyson OnTrac
    Screen Size77 inches—
    Depth2 in deep—
    Weight51.8 lb—
    HDMI Ports4 HDMI ports—
    Headphone Cup Type—Over-ear
    Body Part Use—Ears, Head
    Noise Cancellation Type—Active
    Max Battery Life—55 hours
    Recharge Time—30 mins (for 9 hours)
    Rechargeable Battery—Yes
    Connectivity Technology—Wireless, Bluetooth
    Wireless Type—Bluetooth
    Bluetooth Version—5.0
    Compatible Devices—Smartphone, Laptop
    Ports And Interfaces—USB-C
    Transmission Range—9 m
    Earpad Material—Microfiber
    Driver Size—40 mm
    Frequency Response—6Hz to 21kHz
    Headphone Impedance—16 ohm
    Sensitivity—16 Ohm
    Sound Output—Stereo
    Audio Highlights—Bass Boost, Neutral sound profile
    Water Protection—Not Water Resistant
    Waterproof—No
    Water Resistant—No