Product page

Saris H3 Plus

Sourced specs, what independent reviewers found, and who it suits.

Published Updated By SmartBikeWiki editorial

Compiled from manufacturer pages and named independent reviewers, checked .

Some links here are affiliate links: we may earn a commission at no cost to you. This never changes what we write. How we make money

Spec sheet

Saris H3 Plus specifications, manufacturer claims
TypeSmart trainer
Claimed power accuracy±2%
Max power claim2,000 W (at 20 mph)
Max simulated grade20%
Min simulated gradeNot verified from a primary source
Flywheel20 lb
Noise claim59 dB at 20 mph (Saris)
WeightNot verified from a primary source
Max rider weight300 lb (rider and bike)
ConnectivityANT+ FE-C, Bluetooth FTMS

These numbers are the manufacturer's claims, recorded as stated, not measurements by us. Database record: Saris H3 Plus. Source: saris.com, checked November 2026.

What independent reviewers found

Findings are paraphrased from the reviewer's own page and credited to them. We ran no tests. Where the reviewer tested an earlier or related model, the reviewed model is named.

DC Rainmaker (Ray Maker)

August 2019

Reviewed model
Saris H3 (predecessor)
What was measured
Review of the earlier H3: power vs pedal and crank power meters in Zwift and TrainerRoad, 30x30 ERG repeats
What was reported
Reports power within a few watts of the reference meters most of the time (about ±5 W at worst in the data shown), and says the H3 held ERG targets better than the trainers he compared it with; the built-in cadence estimate was poor. Applies to the H3, the predecessor of the H3 Plus.

BikeRadar

November 2019

Reviewed model
Saris H3 (predecessor of H3 Plus)
What was measured
Power against Garmin Vector pedals; noise; ERG
What was reported
Power within roughly 1-2% of the pedals, about 61 dB at 20 mph and far quieter than the H2, with a 9 kg flywheel and stable resistance changes. Lacks the road-surface feel of pricier trainers.

Research notes and context

The H3 Plus is the budget pick for riders who want a real, heavy flywheel and a higher ceiling (2,000 W, 20% grade) than the JetBlack Victory, but you are buying on the strength of tests of the older H3. On 2 November 2026 Saris’s own store still showed it at $479.99 (sale, against $699.99 regular) and out of stock. The Victory costs $449 before tax at JetBlack’s US store, about $508 with the listed $29 shipping and $30 tariff, ships with a Zwift Cog, and has three reviewers’ measurements of the exact model. Unless the flywheel or rider weight decides it, the Victory is the safer buy.

Against the Victory: the money is a wash, the hardware is not

Against the Victory’s $449 shelf price the H3 Plus is $30.99 more; against the Victory’s delivered $508 it is $28.01 less, if Saris’s sale price includes shipping (its page, as indexed, does not say). Either way the money is close, so the choice is about hardware:

AttributeH3 Plus (Saris)Victory (JetBlack)
Flywheel20 lb, about 9 kg, real mass4.7 kg per BikeRadar and DC Rainmaker
Rider limit300 lb rider and bike120 kg rider
Ceiling2,000 W at 20 mph, 20%1,800 W, 16%
DrivetrainYour own Shimano or SRAM 8 to 12 speed cassetteZwift Cog pre-installed, fits 8 to 12 speed bikes
Independent tests of this modelNone foundBikeRadar, DC Rainmaker, road.cc

Sources: Saris’s store and JetBlack’s spec page as indexed on 2 Nov 2026; flywheel figure for the Victory from the reviewers named. Full records: H3 Plus in the database.

A heavier flywheel mainly changes how the trainer coasts and how a flat road feels at low power; it does not change accuracy. Heavier riders are the clearest case for the Saris: its 300 lb (136 kg) limit includes the bike, so with a 9 kg bike it leaves about 127 kg for the rider, against the Victory’s 120 kg (our arithmetic).

Compatibility, before you order

Saris lists 142 and 148 mm thru-axles and 130 and 135 mm quick-release hubs; thru-axles with fixed levers may need Saris’s adapter. The trainer ships with a pre-installed 8 to 11 speed freehub that Saris calls 12-speed compatible, and Saris lists Shimano and SRAM 8 to 12 speed cassettes, up to 42T for mountain bikes. Per Bikerumor, that is the main hardware change from the H3: the H3 Plus took the H4’s flat driveside shell so 12-speed cassettes clear it. SRAM XD and XDR cassettes need a freehub body sold separately, per Performance Bike’s listing. Saris’s page, as indexed, does not say a cassette is in the box, and Saris sells an 11-speed trainer cassette separately, so budget for one. The cassette and freehub guide shows what each drivetrain needs.

Zwift virtual shifting is the open question. Saris calls the trainer Zwift certified over ANT+ FE-C and Bluetooth FTMS, but we found no Saris or Zwift statement that it supports Zwift Cog shifting, and one owner review on Saris’s page says it does not. If you want virtual shifting, check the Zwift Cog compatibility list first.

Warranty, per Saris’s warranty page (an older page, read through search): lifetime on the frame, two years on electronics and one year on the freehub, belt and pulley wheel, valid in the US only.

The evidence is for the H3, so here is how far it carries

Bikerumor describes the H3 Plus as the H3 with the H4’s flat driveside shell, keeping the H3’s 2,000 W resistance unit, so the 2019 H3 tests are the best guide available:

  • BikeRadar (Nov 2019): power within about 1 to 2% of Garmin Vector pedals and about 61 dB at 20 mph, close to the 59 dB Saris claims for both models.
  • DC Rainmaker (Aug 2019): within a few watts of his reference meters most of the time and steadier ERG than the trainers he compared, with a poor built-in cadence estimate.
  • Zwift Insider’s roundup of other H3 reviews (read as a search snippet) also records over-reading of about 10% at high flywheel speeds in one test and cadence 2 to 3 rpm low.

So: good ERG, accuracy usually inside the ±2% claim, a known cadence weakness, and some reports of error at high speed. None of it has been repeated on the Plus.

Price history

Saris launched the H3 Plus at $699.99 in late 2023, cut it to $399.99 in October 2024 (DC Rainmaker), and has shown $479.99 “sale” against $699.99 since at least 29 September 2026. If it comes back into stock near $400, it undercuts the Victory’s delivered price by about $100 and the case for it gets much stronger. At $699.99 it would be $150.00 more than a KICKR CORE 2 ($549.99) and hard to justify. Every trainer near this price is side by side in cheap smart trainers under $500.

Compared with its closest rivals

Figures are manufacturer claims and store prices from the database; the last column counts independent reviewers whose findings are recorded there.

ModelPriceClaimed accuracyMax powerMax gradeIndependent reviewers in database
Saris H3 Plus$479.99 (sale; out of stock when checked)±2%2,000 W20%2
JetBlack Victory$449±2%1,800 W16%3
Wahoo KICKR CORE 2$549.99±2%1,800 W16%3
Elite Avanti€669 (Elite store, EUR)±1%2,100 W18%1
Elite Rivo€519 (Elite store, EUR)±2.5%2,000 W18%2

How this page was researched

Read for this page: Saris’s H3 Plus store page and warranty page, JetBlack’s US store and spec page, Bikerumor’s H3 Plus launch report, DC Rainmaker’s price-cut report, and the H3 reviews listed above. Saris and JetBlack pages were read through a search index on 2 Nov 2026 because direct fetches were blocked; the H3 reviews were read in full on 29 Sept 2026. SmartBikeWiki runs no tests of its own; every measurement above is the named reviewer’s, paraphrased, and the price arithmetic is ours.

Sources

Update log

  1. Re-checked Saris's store through a search index (direct fetch blocked): still $479.99 sale, $699.99 regular, out of stock. Added the price history ($699.99 launch, $399.99 from Oct 2024), axle and cassette compatibility, the 12-speed shell change, warranty terms and a direct comparison with the Victory at its $449 store price plus $59 shipping and tariff.
  2. Rewrote from Saris store price and spec table; clarified that the independent findings are for the predecessor H3.