StoreDeal.ai store
Shop
  • Deals
  • Deal checker
  • Black Friday
  • Buying guides
  • Brands
  • Stores
Travel
  • Flight deals
  • Hotel deals
Company
  • Research
  • Press
  • Use in AI assistants
  • Contact
  • deal.ai apps
Black Friday 2026
  • Walmart
  • Best Buy
  • Target
  • TVs
  • Laptops
  • Headphones
  • Apple
  • Gaming
  • Vacuums
  • Kitchen
  • Toys
  • Smartwatches
  • Tablets
  • Furniture
  • Mattresses
© Deal.ai Inc.·2222 Ponce de Leon Blvd, Miami, FL 33134·support@deal.ai
TermsPrivacy
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 picture fundamentals are close. The LG B5 is the safer pick for most people: it has four HDMI 2.1 ports, a mature webOS platform with LG Channels, and a much larger owner base behind its 4.7 rating. The Roku Pro Series is the simpler, more streaming-first set, with a backlit voice remote and Roku's interface, but it offers fewer HDMI inputs and far fewer owner reports. Choose the LG if you connect a console, soundbar and streaming box at once; choose the Roku if you want the Roku experience built in and rarely use more than one or two devices.

  • Choose the LG B5 if you need several HDMI 2.1 devices connected at once, want Dolby Vision plus HDR10 and HLG, and prefer a TV with a long track record and a large pool of owner reviews.
  • Choose the Roku Pro Series if you live in the Roku ecosystem, want a backlit voice remote and a simple home screen, and only need a couple of HDMI inputs.

Prices

  • LG B5 OLED TV: $575.00 at mercari.com (last seen Nov 11)
  • Roku Pro Series 4K OLED TV: $799.99 at Walmart (last seen Nov 12)
  • Difference: the LG B5 OLED TV is $224.99 cheaper than the Roku Pro Series 4K OLED TV at the latest prices (Nov 11 and Nov 12)
LG
LG B5

LG B5 OLED TV

LG B5

4.7(4,200 ratings)
$575.00at mercari.comChecked Nov 11
See all prices and details
Visit mercari.com
Pros
  • Four HDMI 2.1 ports cover console, soundbar and streaming stick together
  • Dolby Vision, Dolby Atmos and FILMMAKER MODE out of the box
  • G-Sync, FreeSync Premium and VRR for gaming
  • Large owner base with a high average rating
  • webOS 25 with free LG Channels
Cons
  • Standard OLED panel, not the brighter evo panel found higher in LG's range
  • webOS home screen carries promoted content
  • Only the Alpha 8 processor, not the Alpha 9 used on step-up models
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
See all prices and details
Visit Walmart
Pros
  • Roku OS is simple to learn and fast to navigate
  • Backlit Voice Remote Pro is easy to use in a dark room
  • Supports Dolby Vision, HDR10+ and HLG
  • Slim design sits close to the wall
Cons
  • Only two HDMI ports, which fills up fast with a console and soundbar
  • Alexa is the only supported voice assistant
  • Fewer owner ratings, so long-term reliability is less proven
  • Roku's app selection is narrower than webOS

What separates them

LG B5 OLED TVRoku Pro Series 4K OLED TV
HDMI inputsFour HDMI 2.1 portsTwo HDMI ports, one with 2.1 eARC
Smart platformwebOS 25 with Quick Cards and LG ChannelsRoku OS with the Roku Channel and backlit Voice Remote Pro
HDR formatsDolby Vision, HDR10, HLGDolby Vision, HDR10+, HLG
Voice assistantsGoogle Assistant, Amazon Alexa, SiriAmazon Alexa
Gaming featuresG-Sync, FreeSync Premium, VRR, Game Optimizer120 Hz panel and game mode, fewer stated sync certifications
Owner review base4.7 from about 4,200 ratings4.6 from about 380 ratings
RemoteStandard LG magic-style remoteBacklit Roku Voice Remote Pro
ProcessorAlpha 8 AI Processor Gen 2 with AI upscalingRoku picture engine with automatic picture and sound tuning

Price history

$2,499.99$299.99
Oct 29Nov 13
  • LG B5 OLED TV: lowest $299.99 on Nov 6 at DoorDash; $299.99 on Nov 13.
  • 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

  • eBayNew

    In stockSold by wholesale_connection

    $899.99Free shippingChecked Nov 11
    Visit eBay
  • mercari.comNew

    Availability unknown

    $575.00Checked Nov 11
    Visit mercari.com
  • AmazonNew

    Availability unknown

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

    $899.99Free shippingChecked Nov 12
    Visit Amazon
  • Enervee NYNew

    Availability unknown

    $2,999.99Checked Nov 11
    Visit Enervee NY

Also available at

  • Best BuyCheck price at Best Buy
  • NeweggCheck price at Newegg
  • eBayCheck price at eBay

Store links may earn us a commission.

All 7 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
    Visit Best Buy
  • 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
ColorBlackBlack
Screen FormFlatFlat
Display TypeOLEDOLED
Assistant SupportGoogle Assistant, Amazon Alexa, SiriAmazon Alexa
HDRYesYes
Refresh Rate120 Hz120 Hz
ConnectivityBluetooth, Wi-Fi, RF, USB, HDMI, EthernetWi-Fi® 5 802.11ac (Roku Pro Series)
Supported Streaming ServicesNetflix, Prime Video, YouTube, HBO, Disney+Hulu, Netflix, Prime Video, Spotify, Disney+, R…
Width67.7 in wide64.6 in wide
Show all 40 specsShow fewer specs
SpecLG B5 OLED TVRoku Pro Series 4K OLED TV
Screen Size77 inches55" Class: 54.6" diagonal
Depth2 in deep1.9 in deep
HDMI Ports4 HDMI ports2 HDMI ports
Weight51.8 lb—
Display TechnologyN\A—
Maximum ResolutionN\A—
Display65-inch OLED—
SmartwebOS—
Screen Size Class48 inches—
High Dynamic Range (HDR)

What reviewers say

LG B5 OLED TV

  • 4.7 / 54,200 ratings

With 4.7 out of 5 from about 4,200 ratings, owners are largely happy with the B5's picture and gaming features. Most praise comes from people stepping up from LED TVs. Complaints center on brightness in bright rooms and the step down from the C series.

What people mention
  • Picture qualityPraisedOwners say blacks are deep and colors look rich, especially in dim rooms.
  • BrightnessCriticisedReviewers say it struggles in bright, sunlit rooms compared with brighter OLEDs.
  • GamingPraisedBuyers like the 120Hz panel with VRR for consoles and PC.
  • ProcessorMixedSome say the Alpha 8 chip is fine, others notice weaker upscaling than the C series.

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.
  • BrightnessMixed
Reviews
  • You can get an LG B5 OLED for less than $900

Questions and answers

Which is better for gaming, the LG B5 or the Roku Pro Series?
The LG B5. Both have a 120 Hz OLED panel, but the B5 adds G-Sync, FreeSync Premium, VRR and a Game Optimizer dashboard, and its four HDMI 2.1 ports let you keep a console and a PC connected at once.
Do both support Dolby Vision?
Yes. Both handle Dolby Vision, and both support HLG. The Roku adds HDR10+, which the LG does not list, while the LG covers plain HDR10.
Which has the better smart TV system?
It depends on preference. Roku OS is simpler and comes with a backlit voice remote. LG's webOS has a wider app selection, free LG Channels and support for Google Assistant, Alexa and Siri. Roku wins on ease, LG on flexibility.
Is the Roku Pro Series worth stepping up to over the LG B5?
Only if you want Roku's interface and remote and do not need many HDMI ports. On hardware the LG gives you more inputs and more gaming certifications for a similar OLED picture.
Which one is more reliable long term?
The LG B5 has a much larger review base, around 4,200 ratings at 4.7, against roughly 380 at 4.6 for the Roku. That is stronger evidence of consistent owner satisfaction, though both are recent models.
Can I wall-mount both?
Yes. Both are flat OLED sets with VESA mounting, and the Roku's slim depth is designed to sit close to the wall. Check the VESA pattern for your size before buying a bracket.

Ask our shopping agent

It checks today's price at every store, compares the alternatives and answers in about a minute.

Enter to send, Shift+Enter for a new line

More comparisons

  • LG B5 vs LG OLED evo C4 55-inch 4K Smart TV
  • LG C5 vs LG B5
  • LG B5 vs LG 55" Class B6E Series OLED AI 4K Smart webOS TV
  • LG B5 vs Samsung 42” Class S90H Series OLED 4K UHD Samsung Vision AI Smart Tizen TV 2026
  • LG B5 vs LG 65" OLED EVO 4K AI SMART TV
  • LG B5 vs Samsung 65-inch OLED 4K Vision AI Smart TV
  • LG B5 vs LG 65 inch OLED evo AI C6 4K Smart webOS TV (2026)
  • LG B5 vs LG C5 OLED evo 4K Smart TV (2025)

Buying guides that pick them

  • Best 55-65 inch OLED TVs under $1,500
  • Best LG OLED TVs under $1,000
  • Best 60-inch OLED TVs under $5,000
  • Best OLED TVs under $1,500 for movies
  • Best OLED TVs under $1,000
true
—
High Dynamic Range FormatDolby Vision, HDR 10, Hybrid Log-Gamma (HLG)—
OLED TechnologyStandard OLED—
Motion Enhancement TechnologyOLED Motion—
Specific Manufacturer TechnologiesAlpha 8 AI Processor Gen 2—
Smart PlatformwebOS—
Number of HDMI Inputs (Total)4—
TV Tuner TypeATSC, Clear QAM—
Works WithAmazon Alexa, Google Home, Apple Home—
Voice Assistant Built-inAmazon Alexa—
BrandLG—
Model NumberOLED48B5PUA—
SeriesOLED - B5 series—
Model Year2025—
Product Height With Stand26.9 inches—
Product Width42.1 inches—
Product Depth With Stand9.3 inches—
Product Height Without Stand24.4 inches—
Product Depth Without Stand1.8 inches—
Some owners find it dimmer than expected in a sunlit room.