Merach W50 vs Sunny SF-T1407M Manual Walking Treadmill

Quick answer

Pick the Merach W50 for a higher weight limit (400 lb vs 220 lb) and a wider belt (16.5 in vs 13 in); pick the Sunny SF-T1407M Manual Walking Treadmill for less weight to move (46.7 lb vs 69.2 lb) and a folding deck.

Specs side by side

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Product	Max user	Belt	Weight	Speed	Incline	Folds	Remote	App	Size	Warranty	Where to buy
1 Merach W50Mid-range tier	400 lb	41.3 x 16.5	69.2 lb	0.6-4.0 mph	1-12% motorized	✕ Nostands upright for storage	✓ Yes(magnetic)	Merach app	50.2 x 22.2 x 6.1 in	1 year standard + 1 year with…	Check price on Amazon
2 Sunny SF-T1407M Manual Walking TreadmillBudget tier	220 lb	42 x 13	46.7 lb	User-driven	Fixed 13.5%	✓ Yesdeck folds up	✕ No	None	Unfolded 49 x 23 x 50 in	3-year structural frame	Check price on Amazon

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.

Who should pick which

Pick the Merach W50 if

you weigh more than about 190 lb. It is rated for 400 lb against 220 lb, and we suggest 30 lb of headroom above your weight.
you drift sideways while you read or type. A 16.5-inch belt gives more room than 13 inches.
you want to walk uphill. It has motorized incline up to 12%, while the Sunny SF-T1407M Manual Walking Treadmill only has fixed incline.
you want to change speed without bending down to a console.

Pick the Sunny SF-T1407M Manual Walking Treadmill if

you will move it in and out of storage often. It weighs 46.7 lb against 69.2 lb.
storage space is tight. It folds (yes, deck folds up); the other one does not fold its deck.
you want something to hold for balance, for example at faster speeds or on incline.
budget matters most. It sits in the budget tier.

Fit check

Model	User weight (with 30 lb headroom)	Height, slow desk pace	Height, with room to drift	Height, brisk walking
Merach W50	up to about 370 lb	up to about 5'11"	up to about 4'8"	Too short by our rule
Sunny SF-T1407M Manual Walking Treadmill	up to about 190 lb	up to about 6'1"	up to about 4'10"	Too short by our rule

Height fit uses our belt rule: a walking step of 0.41 times your height (0.45 when brisk), plus 12 inches for your shoe, plus 6 inches of room to drift where noted. It is a rough guide, not a measurement of you.

Merach W50

Heavy-duty pad with motorized inclineMerach NovaWalk W50 TrekPad Walking Pad with 12% Auto Incline

Max user 400 lbBelt 41.3 x 16.5Incline 1-12% motorizedFolds no

Read our full review →

Mid-range tierCheck price on Amazon

What owners report: Merach W50

Our summary, in our own words, of 30 verified-purchase Amazon reviews we read on 30 October 2026 (the listing then showed 89 positive and 22 critical verified reviews). This is not our own testing.

What they like

Built heavy and stable, including for owners around 250 to 285 lb
Quiet enough for work calls and early mornings
Incline stays steady and the remote responds well

Common complaints

4 of the 14 critical reviews we read describe the motor or unit failing or barely working, from the first few uses to six months
Some report the belt stalling at low speed, damage in shipping or new grinding and knocking noises after a few weeks
One owner found black residue on the floor, so use a mat

Sunny SF-T1407M Manual Walking Treadmill

Budget non-electric walkingSunny Health & Fitness SF-T1407M Manual Walking Treadmill, Non-Electric, Foldable

Max user 220 lbBelt 42 x 13Incline fixed 13.5%Folds yes, deck folds up

Budget tierCheck price on Amazon

Related comparisons

Full specs: Merach W50, Sunny SF-T1407M Manual Walking Treadmill.

Our buying guides

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

Questions

Which holds more weight, the Merach W50 and Sunny SF-T1407M Manual Walking Treadmill?

The Merach W50, rated 400 lb, against 220 lb for the Sunny SF-T1407M Manual Walking Treadmill.

Which is better for tall people?

The Sunny SF-T1407M Manual Walking Treadmill has the longest belt at 42 inches, which suits walkers up to about 6'1" at slow desk pace (4'10" with 6 inches of room to drift), though it is short for brisk walking by our rule, by our belt rule.

Which is lighter to move?

The Sunny SF-T1407M Manual Walking Treadmill at 46.7 lb.