Best for tracking sessions
Sunny Health & Fitness SF-B0891SMART
FitScore for Under Desk Bike
- ResistanceMagnetic, 8 levels
- Max user weight300 lb
- Warranty1 year frame, 6 months p…
- Product weight19.1 lb
Choose it if you want set magnetic resistance levels and app tracking while you work.
Best for light and simple
Sunny Health & Fitness SF-B023005
FitScore for Under Desk Bike
- ResistanceNot stated
- Max user weight300 lb
- Warranty1 year frame, 6 months p…
- Product weight11.7 lb
Choose it if you want the smaller, lighter pedaler to slide under a desk or carry between rooms.
Overall winner for desk use: Sunny Health & Fitness SF-B0891SMART, by 10.8 points (56.2 against 45.4) with the weights of our best under desk bike guide. It leads on performance and features.
Sunny Health & Fitness SF-B0891SMART wins 2 rounds- Sunny Health & Fitness SF-B023005 wins 0 rounds
- =3 ties
Product photos from Amazon. FitScore weights are explained below.
Sunny SF-B0891SMART vs SF-B023005: both are Sunny under-desk bikes rated for 300 lb with a 1-year frame warranty. The SF-B0891SMART adds 8 magnetic levels, a 3.3-lb flywheel and the free SunnyFit app; the SF-B023005 is smaller and weighs 11.7 lb. Our FitScore favors the SF-B0891SMART for desk use.
Head-to-Head Specs
Here are the two side by side. A check mark shows the stronger spec on each line. Check both warranties before you order: the FTC explains how to read a product warranty. The CDC recommends that adults get at least 150 minutes of moderate-intensity aerobic activity a week, which steady cycling counts toward. Harvard Health Publishing lists about 252 calories in 30 minutes of moderate stationary cycling for a 155 lb person.
| Specification | Sunny Health & Fitness SF-B0891SMARTFitScore 56.2 | Sunny Health & Fitness SF-B023005FitScore 45.4 |
|---|---|---|
| Type | Under-desk | Under-desk |
| Resistance | Magnetic, 8 levels✓ | Not stated |
| Flywheel | 3.3 lb✓ | Not stated |
| Max user weight | 300 lb | 300 lb |
| Size (length × width) | 21.3 × 16.43 in | 17.9 × 16.1 in |
| Product weight | 19.1 lb | 11.7 lb✓ |
| Rider fit | Not stated | Not stated |
| Seat and handlebar | Not stated | Not stated |
| Console and programs | Basic LCD console (programs not stated) | Basic LCD console (programs not stated) |
| Bluetooth and apps | Bluetooth, SunnyFit (free) | No Bluetooth or app listed |
| Heart rate | Not stated | Not stated |
| Membership | None needed | Not stated |
| Storage and moving | No transport wheels listed, 19.1 lb | No transport wheels listed, 11.7 lb |
| Warranty | 1 year frame, 6 months parts | 1 year frame, 6 months parts |
| Specs won | 2 of 14 | 1 of 14 |
Check Amazon for current pricing and availability.
FitScore Duel
Both scores use the weights of our best under desk bike guide (how we score). Practicality (35%) counts most, then performance, durability and features (15% each) and comfort and affordability (10% each). The Sunny Health & Fitness SF-B0891SMART ranks #1 in that guide. The Sunny Health & Fitness SF-B023005 ranks #2 in that guide.
Key Differences
- Resistance: Magnetic, 8 levels on the Sunny Health & Fitness SF-B0891SMART; not stated on the Sunny Health & Fitness SF-B023005.
- Flywheel: 3.3 lb on the Sunny Health & Fitness SF-B0891SMART; not stated on the Sunny Health & Fitness SF-B023005.
- Size (length × width): 21.3 × 16.43 in on the Sunny Health & Fitness SF-B0891SMART; 17.9 × 16.1 in on the Sunny Health & Fitness SF-B023005.
- Product weight: 19.1 lb on the Sunny Health & Fitness SF-B0891SMART; 11.7 lb on the Sunny Health & Fitness SF-B023005.
- Bluetooth and apps: Bluetooth, SunnyFit (free) on the Sunny Health & Fitness SF-B0891SMART; No Bluetooth or app listed on the Sunny Health & Fitness SF-B023005.
- Membership: None needed on the Sunny Health & Fitness SF-B0891SMART; not stated on the Sunny Health & Fitness SF-B023005.
- Storage and moving: No transport wheels listed, 19.1 lb on the Sunny Health & Fitness SF-B0891SMART; No transport wheels listed, 11.7 lb on the Sunny Health & Fitness SF-B023005.
Round 1 of 5
Sunny SF-B0891SMART vs SF-B023005: Resistance and Flywheel
Sunny Health & Fitness SF-B0891SMART wins this round
Here is how the two compare on the work the machine does.
Resistance: Magnetic, 8 levels on the Sunny Health & Fitness SF-B0891SMART; not stated on the Sunny Health & Fitness SF-B023005.
Flywheel: 3.3 lb on the Sunny Health & Fitness SF-B0891SMART; not stated on the Sunny Health & Fitness SF-B023005.
Performance score in this comparison: Sunny Health & Fitness SF-B0891SMART 47, Sunny Health & Fitness SF-B023005 0.
Round 2 of 5
Capacity, Frame and Warranty
Tie. Neither model has a clear edge here.
Capacity and warranty are the stated measures of build.
Max user weight: both list 300 lb.
Warranty: both list 1 year frame, 6 months parts.
Durability score in this comparison: Sunny Health & Fitness SF-B0891SMART 50.14, Sunny Health & Fitness SF-B023005 50.14.
Round 3 of 5
Fit and Riding Position
Tie. Neither model has a clear edge here.
Comfort comes down to fit and how you sit or stand.
Type: both list under-desk.
Comfort score in this comparison: Sunny Health & Fitness SF-B0891SMART 34, Sunny Health & Fitness SF-B023005 34.
Round 4 of 5
Size, Weight and Moving
Tie. Neither model has a clear edge here.
Size (length × width): 21.3 × 16.43 in on the Sunny Health & Fitness SF-B0891SMART, 17.9 × 16.1 in on the Sunny Health & Fitness SF-B023005.
Product weight: 19.1 lb on the Sunny Health & Fitness SF-B0891SMART, 11.7 lb on the Sunny Health & Fitness SF-B023005.
Use a chair that does not roll and check the knee room under your desk, since both sit on the floor in front of you.
Practicality score in this comparison: Sunny Health & Fitness SF-B0891SMART 70, Sunny Health & Fitness SF-B023005 70.
Round 5 of 5
Console, Apps and Extras
Sunny Health & Fitness SF-B0891SMART wins this round
Console and programs: both list basic LCD console (programs not stated).
Bluetooth and apps: Bluetooth, SunnyFit (free) on the Sunny Health & Fitness SF-B0891SMART, No Bluetooth or app listed on the Sunny Health & Fitness SF-B023005.
Membership: None needed on the Sunny Health & Fitness SF-B0891SMART; not stated on the Sunny Health & Fitness SF-B023005.
Features score in this comparison: Sunny Health & Fitness SF-B0891SMART 25, Sunny Health & Fitness SF-B023005 0.
Who Should Buy Each
Desk workers who track sessions
Pick the SF-B0891SMART if you pedal through long work blocks and want to log your sessions in the free app.
Light, occasional desk pedaling
Pick the SF-B023005 if you want a simple 11.7-lb unit that is easy to move and store.
Consider Instead
DeskCycle 2
If neither fits, look at the DeskCycle 2: it offers another ranked pick of our best under desk bike guide. It ranks #3 in our best under desk bike guide.
Final Verdict
Overall winner for desk use: Sunny Health & Fitness SF-B0891SMART. Pick the SF-B0891SMART for magnetic resistance levels and the app; pick the SF-B023005 for the smaller, lighter frame.
Sunny Health & Fitness SF-B0891SMART vs Sunny Health & Fitness SF-B023005 FAQ
With the weights of our best under desk bike guide, the Sunny Health & Fitness SF-B0891SMART scores higher: 56.2 against 45.4. It leads on performance and features.
The SF-B023005 weighs 11.7 lb, against 19.1 lb for the SF-B0891SMART.
The SF-B0891SMART has Bluetooth and the free SunnyFit app. No Bluetooth or app connection is stated for the SF-B023005.
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