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Deal.ai › Compare

LG B5 OLED TV vs Roku Pro Series 4K OLED TV

Both are 4K OLED sets with a 120 Hz panel, so the picture core is close. The LG B5 wins on gaming and format support: four HDMI ports with HDMI 2.1 on all of them, plus Dolby Vision and Dolby Atmos. The Roku Pro Series wins on simplicity: Roku's interface is the easiest to learn, and the backlit Voice Remote Pro is a genuine daily-use upgrade. Owners rate the Roku highly, but the LG's extra ports and wider size range make it the safer long-term buy for a busy living room.

  • Choose the LG B5 if you have a console, a soundbar and a streaming stick to plug in, or you want a size other than 55 or 65 inches.
  • Choose the Roku Pro Series if you want the simplest smart TV software and a remote that lights up and finds itself.

Prices

  • LG B5 OLED TV: $899.99 at eBay (last seen Nov 2)
  • Roku Pro Series 4K OLED TV: $799.99 at Walmart (last seen Nov 12)
  • Difference: the Roku Pro Series 4K OLED TV is $100.00 cheaper than the LG B5 OLED TV at the latest prices (Nov 2 and Nov 12)
LG
LG B5 Series 4K Ultra HDR Smart AI OLED WebOS TV

LG B5 OLED TV

LG B5 Series 4K Ultra HDR Smart AI OLED WebOS TV

$899.99at eBayChecked Nov 2
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Pros
  • Four HDMI 2.1 ports suit a console, soundbar and streamer at once
  • OLED contrast with 120 Hz for smooth motion
  • Available from 48 to 83 inches
  • Works with Google Assistant, Alexa and Siri
Cons
  • Only two HDMI 2.1-class ports on many rivals; here all four are 2.1 but the panel is entry-level OLED
  • webOS can feel busier than Roku
  • No HDR10+ support
Roku
Roku 65-Inch Pro Series 4K OLED 120Hz Smart TV (2026)

Roku Pro Series 4K OLED TV

Roku 65-Inch Pro Series 4K OLED 120Hz Smart TV (2026)

4.6(380 ratings)
$799.99at WalmartChecked Nov 12
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Pros
  • Roku OS is the easiest smart TV interface to learn
  • Backlit Voice Remote Pro with a finder button
  • Dolby Vision, HDR10+ and HLG all supported
  • Slim design sits nearly flush on the wall
Cons
  • Only two HDMI ports, one of them 2.1
  • Limited to 55 and 65 inches
  • Alexa only, no Google Assistant or Siri

What separates them

LG B5 OLED TVRoku Pro Series 4K OLED TV
HDMI inputsFour HDMI ports, all HDMI 2.1Two HDMI ports, one HDMI 2.1 eARC
Smart platformwebOS with a full app store and multi-assistant supportRoku OS, simple and fast, Alexa only
HDR formatsDolby Vision and HDR10, plus OLED per-pixel contrastDolby Vision, HDR10+ and HLG
AudioDolby Atmos decoding, built-in speakersDolby Atmos with automatic sound adjustment
RemoteStandard LG Magic RemoteBacklit Roku Voice Remote Pro with lost-remote finder
Screen sizes48, 55, 65, 77 and 83 inches55 and 65 inches
Wall mountingStandard VESA mountSlim profile, sits flat against the wall
Owner feedbackLong-running OLED line with a large owner base4.6 out of 5 from 380 ratings

Price history

$1,199.99$799.99
Nov 1Nov 13
  • LG B5 OLED TV: lowest $899.99 on Nov 1 at eBay; $1,199.99 on Nov 9.
  • Roku Pro Series 4K OLED TV: lowest $799.99 on Nov 12 at Walmart; $1,199.99 on Nov 13.

Prices at every store

LG B5 OLED TV

  • eBayRefurbished

    In stockSold by vipoutlet

    $855.00Free shippingChecked Nov 8
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  • eBayNew

    Availability unknown

    $899.99Checked Nov 2
    Visit eBay
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $1,199.99Free shippingChecked Nov 8
    Visit Amazon

Also available at

  • PzDealsCheck price at PzDeals

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All 2 stores and price history →

Roku Pro Series 4K OLED TV

  • WalmartNew

    In stock

    $799.99Checked Nov 12
    Visit Walmart
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $849.99Checked Nov 2
    Visit Amazon
  • Best BuyNew

    Availability unknown

    $899.99Checked Nov 1
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  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $1,199.99Free shippingChecked Nov 12
    Visit Amazon

Store links may earn us a commission.

All 3 stores and price history →

Specs compared

SpecLG B5 OLED TVRoku Pro Series 4K OLED TV
Resolution3840 x 21604K
High DefinitionYesYes
HDTV Format4K4K
ColorBlack, BrownBlack
Screen FormFlatFlat
Display TypeOLEDOLED
Assistant SupportGoogle Assistant, Amazon Alexa, SiriAmazon Alexa
HDRYesYes
Refresh Rate120 Hz120 Hz
ConnectivityBluetooth, Wi-Fi, RF, USB, HDMI, Ethernet, Opti…Wi-Fi® 5 802.11ac (Roku Pro Series)
Supported Streaming ServicesNetflix, Disney+Hulu, Netflix, Prime Video, Spotify, Disney+, R…
Screen Size48 inches, 55 inches, 65 inches, 77 inches, 83 …55" Class: 54.6" diagonal
Show all 21 specsShow fewer specs
SpecLG B5 OLED TVRoku Pro Series 4K OLED TV
HDR format—Dolby Vision, HDR10+, HLG
Bluetooth—Yes
Audio—Dolby Atmos
HDMI inputs—1 HDMI 2.1 eARC
VESA mount—55”: 300mm x 200mm
Model—Roku Pro Series: 55RAD5 | 65RAD5
Width—64.6 in wide
Depth—1.9 in deep
HDMI Ports—2 HDMI ports

What reviewers say

Roku Pro Series 4K OLED TV

  • 4.6 / 5380 ratings

Owner feedback on Roku's Pro Series OLED centers on the picture and the built-in Roku software. Buyers like the contrast and the familiar interface; complaints tend to be about the small port count and Wi-Fi 5.

What people mention
  • Picture qualityPraisedOwners praise the OLED contrast and color, especially in dark rooms.
  • Port selectionCriticisedBuyers say two HDMI ports is too few for a console, soundbar and streaming box.
  • SoftwarePraisedThe Roku interface is called simple and fast to set up.
  • BrightnessMixedSome owners find it dimmer than expected in a sunlit room.

Questions and answers

Which is better for gaming?
The LG B5. It has four HDMI 2.1 ports and a 120 Hz OLED panel, so a console, a PC and a soundbar can all stay connected at full bandwidth. The Roku has one HDMI 2.1 port, which is enough for a single console but not for a full setup.
Which has the better smart TV software?
Roku is simpler and faster to learn, and its backlit remote is better in a dark room. webOS has more apps and settings and supports Google Assistant and Siri as well as Alexa. Pick Roku for ease, LG for flexibility.
Does the Roku support more HDR formats?
Yes. The Roku adds HDR10+ on top of Dolby Vision and HLG. The LG covers Dolby Vision and HDR10. In practice both look excellent on OLED; HDR10+ matters mainly for some Amazon and Samsung-produced content.
Which lasts longer?
Neither has a clear edge on lifespan. Both use OLED panels rated for years of normal viewing, and burn-in risk is low with mixed content. The LG's larger owner base gives more long-term reliability data; the Roku's 4.6 rating suggests satisfied owners so far.
Is the LG worth stepping up to over the Roku?
If you need more than two HDMI inputs, a size other than 55 or 65 inches, or Google Assistant and Siri, yes. If you mainly stream and want the simplest remote and menu, the Roku covers that well.
Which is better for a bright room?
Both are OLED, so neither is the brightest option for a sunlit room. The Roku's anti-glare treatment and slim flush mount help, but a bright room favors a bright LCD set over either of these.

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