Sunny Health & Fitness SF-E3912 Elliptical Machine
- Magnetic resistance, 16 levels
- 15.5 inch maximum stride
- 330 lb maximum user weight
- 104.8 lb machine weight
- 55 x 23 x 64.5 inch footprint
- 3 year frame warranty
Last refreshed Jun 29, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A magnetic home elliptical with many resistance levels, an extended stride and app access. The capacity entries disagree, so check the load limit before you rely on it.
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ASIN: B07SRDFKQRModel: SF-E3912Category: Elliptical Trainers
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Overview
Sunny Health and Fitness builds this elliptical with a magnetic resistance system and a large display for tracking. The stride length reaches a long maximum, and the alloy steel frame comes with a user manual.
Tunable resistance and generous stroke length are the reason to look at it for a full-body workout at home. The limitation is the mixed data: the title and specs give different load limits and stride options.
Who it's for
Home exercisers wanting low-impact cardio and a long stride get a full-size machine. Small apartments, or buyers requiring a verified load rating, should look elsewhere.
Pros and cons
- Magnetic resistance is quiet
- Many resistance levels
- Long maximum stride
- Frame warranty is listed
- Load limit entries conflict
- Stride options conflict
- Large and heavy
Performance notes
Magnets near the flywheel add resistance without contact, so there are no pads to wear. A longer stride follows a more natural path for taller users, and the pedals move the handles in a smooth cycle.
Specifications
| Brand | Sunny |
|---|---|
| Model | SF-E3912 |
| Dimensions & fit | |
| Maximum Stride Length | 15.5 inches |
| Maximum Weight Recommendation | 330 pounds |
| Display Size | 35.6 centimeters |
| Item Dimensions D x W x H | 55 x 23 x 64.5 inches |
| Item weight | 104.8 pounds |
| Construction & materials | |
| Material Type | Alloy steel |
| Warranty & support | |
| Warranty Description | 3 year frame, 180 days other parts |
| Other details | |
| Resistance Mechanism | Magnetic |
| Number of Resistance Levels | 16 |
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Frequently asked questions
How do I look after the Sunny SF-E3912?
The listing gives no care instructions. Check the user manual that comes with it, and note the frame is covered for 3 years.
How much weight does the Sunny SF-E3912 hold?
The specs say 330 pounds, while the title says 300 lbs capacity.
What stride does the Sunny SF-E3912 have?
The specs list a maximum stride of 15.5 inches, though the title mentions 12 or 16 inch options.