Best Exercise Bikes · head-to-head

NordicTrack S22i Studio Bike vs Keiser M3i Indoor Bike

A sourced, side-by-side comparison. NordicTrack S22i Studio Bike is cheaper at $1999. Every spec and price links to its source.

Which is better: the NordicTrack S22i Studio Bike or Keiser M3i Indoor Bike?

On the specs we track, they're closely matched. The NordicTrack S22i Studio Bike is the cheaper at $1999.

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Full spec sheet

marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.

Spec NordicTrack S22i Studio Bike Keiser M3i Indoor Bike
US price $1999 $2985
BrandNordicTrackKeiser
Released20202019
Bike type indoor indoor
Resistance type SMR Silent Magnetic Resistance eddy current magnetic (non-contact)
Resistance levels 24 24
Touchscreen (in) 22
Flywheel (lb) 8
Max user weight (lb) 350 350
Subscription required Yes No
Release 2020 2019

Sources — NordicTrack S22i Studio Bike: nordictrack.com (verified 2026-06-15). Keiser M3i Indoor Bike: keiser.com (verified 2026-06-15).

What's the difference between the NordicTrack S22i Studio Bike and Keiser M3i Indoor Bike?

Where the two actually differ on the specs we track (2 of 7). Matching specs are omitted.

  • Resistance type: NordicTrack S22i Studio Bike SMR Silent Magnetic Resistance vs Keiser M3i Indoor Bike eddy current magnetic (non-contact)
  • Subscription required: NordicTrack S22i Studio Bike true vs Keiser M3i Indoor Bike false

What reviewers say

Sourced tester consensus for each — the "what people who used it think" layer, not just specs.

NordicTrack S22i Studio Bike

Three hands-on testers (Garage Gym Reviews, BarBend, Reviewed) rate the S22i a top Peloton alternative, praising engaging iFit programming with Google Maps scenic rides, unique 20% incline / -10% decline auto-follow, quiet magnetic resistance, and a sturdy above-average 350-lb-capacity frame. Complaints are split across testers rather than unanimous: lengthy individually-wrapped assembly needing two people (GGR, BarBend), a stiff, minimally-padded stock seat on longer rides (GGR, Reviewed), and the ~$1,999 price plus near-mandatory $39/mo iFit fee (GGR, BarBend). No source published instrument-measured lab numbers; RTINGS-style data unavailable. (3 sourced reviews.)

Praised: Engaging iFit interactive programming plus Google Maps scenic rides make workouts fly by; Unique +20% incline / -10% decline with AutoAdjust auto-follow simulates real road rides; Sturdy frame with an above-average 350 lb weight capacity.

Flagged: Lengthy, fiddly assembly with many individually-wrapped parts; two people recommended; Stiff, minimally-padded stock seat gets uncomfortable on longer rides; Expensive (~$1,999) and effectively requires the $39/mo iFit subscription to be worthwhile.

Keiser M3i Indoor Bike

Only one whitelisted source, Garage Gym Reviews, published usable prose for the exact Keiser M3i; Wirecutter, TechGearLab, Reviewed and Tom's Guide had no M3i review. GGR calls it a durable, extremely smooth, time-tested studio-grade bike it deems worth its $2,000-plus price, while flagging a primitive, small display and the lack of a built-in screen. (1 sourced review.)

Praised: Extremely smooth ride; Durable, time-tested build that fits riders 4'10"-7' with a 350-lb capacity; Cheap app access at only $6.99/mo for interactive programming.

Flagged: Primitive and small display; No built-in screen to view interactive programming; High price (more than $2,400).

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