Independent research. Specs checked against maker manuals and live listings.We may earn a commission from qualifying purchases.

Merach vs Sunny Health & Fitness

Merach has 2 in-stock models rated up to 400 lb; Sunny Health & Fitness has 2 rated up to 330 lb.

Specs checked October 30, 2026 · Built from published specs, not our own testing

Merach

  • 2 in-stock models: 2 walking pads.
  • Weight limits from 400 to 400 lb.
  • Belt lengths from 41.3 to 41.3 inches.
  • 2 of 2 have incline, and 0 fold.

All Merach models

Sunny Health & Fitness

  • 2 in-stock models: 2 manual treadmills.
  • Weight limits from 220 to 330 lb.
  • Belt lengths from 42 to 59 inches.
  • 1 of 2 have incline, and 1 fold.

All Sunny Health & Fitness models

Both lineups side by side

Scroll sideways for all specs →

ProductMax userBeltWeightInclineFoldsSpeedWhere to buy
1
Merach UltraWalk W60 (Plus)Mid-range tier
400 lb41.3 x 16.567.7 lb0-12% motorized✕ Nostores flat or upright0.6-4.0 mph
2
Merach W50Mid-range tier
400 lb41.3 x 16.569.2 lb1-12% motorized✕ Nostands upright for storage0.6-4.0 mph
3
Sunny SF-T1407M Manual Walking TreadmillBudget tier
220 lb42 x 1346.7 lbFixed 13.5%✓ Yesdeck folds upUser-driven
4
Sunny SF-X7110 Smart Ultra Curved Manual TreadmillPremium tier
330 lb59 x 17.7157 lbNone✕ NoUser-driven

Figures are as published by the maker unless the product section below says otherwise. Hover or tap a cell for the full note. We link to the live price instead of printing one, because prices change daily.

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How these pages are built

Every figure comes from the maker's product page, manual or the Amazon listing, and we only include models with a live, in-stock Amazon listing we checked ourselves. When sources disagree on a weight limit we use the lowest number. We do not test these machines ourselves.

Height fit starts from a typical walking step of 0.41 times your height (0.45 when walking briskly), adds 12 inches for your shoe, and 6 more inches of room to drift for a comfortable fit. These are rough guides, not measurements of you. Weight fit leaves 30 lb of headroom above your body weight.

How we research