Goplus Superfit 4.75HP vs Sunny SF-X7110: Specs Compared

Quick answer

Pick the Goplus Superfit 4.75HP 2-in-1 for a wider belt (20 in vs 17.7 in) and less weight to move (106 lb vs 157 lb); pick the Sunny SF-X7110 Smart Ultra Curved Manual Treadmill for a higher weight limit (330 lb vs 265 lb) and a longer belt (59 in vs 49 in).

Specs side by side

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Product	Max user	Belt	Weight	Speed	Incline	Folds	Remote	App	Size	Warranty	Where to buy
1 Goplus Superfit 4.75HP 2-in-1Mid-range tier	265 lb	49 x 20	106 lb	0.6-3 mph walking mode	None	✓ Yeshandrails fold down flat…	✓ Yes	Goplus app	58 x 31 x 47 in unfolded	90-day limited warranty	Check price on Amazon
2 Sunny SF-X7110 Smart Ultra Curved Manual TreadmillPremium tier	330 lb	59 x 17.7	157 lb	User-driven	None	✕ No	✕ No	SunnyFit	67.7 x 29.9 x 59.05 in; step-up 11.4 in min / 16.5 in max	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 Goplus Superfit 4.75HP 2-in-1 if

you drift sideways while you read or type. A 20-inch belt gives more room than 17.7 inches.
you will move it in and out of storage often. It weighs 106 lb against 157 lb.
you want to change speed without bending down to a console.
budget matters most. It sits in the mid-range tier.

Pick the Sunny SF-X7110 Smart Ultra Curved Manual Treadmill if

you weigh more than about 235 lb. It is rated for 330 lb against 265 lb, and we suggest 30 lb of headroom above your weight.
you are tall or walk briskly. Its 59-inch belt suits walkers up to about 9'6" at slow desk pace (8'4" with 6 inches of room to drift), and up to about 7'7" for brisk walking, against 7'6" at slow desk pace on the 49-inch belt.

Fit check

Model	User weight (with 30 lb headroom)	Height, slow desk pace	Height, with room to drift	Height, brisk walking
Goplus Superfit 4.75HP 2-in-1	up to about 235 lb	up to about 7'6"	up to about 6'3"	up to about 5'8"
Sunny SF-X7110 Smart Ultra Curved Manual Treadmill	up to about 300 lb	up to about 9'6"	up to about 8'4"	up to about 7'7"

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.

Goplus Superfit 4.75HP 2-in-1

Walkers who also want real running speedGoplus 2 in 1 Folding Treadmill, 4.75HP Superfit Under Desk Electric Treadmill with App Control

Max user 265 lbBelt 49 x 20Incline noneFolds yes

Read our full review →

Mid-range tierCheck price on Amazon

What owners report: Goplus Superfit 4.75HP 2-in-1

Our summary, in our own words, of 15 verified-purchase Amazon reviews we read on 30 October 2026 (the listing then showed 5 positive and 12 critical verified reviews). This is not our own testing.

What they like

Simple walking and running with a tablet shelf and speaker
Folds and rolls for storage

Common complaints

More verified reviews on this listing are critical than positive
5 of the 10 critical reviews we read report it stopping with error codes after 3 weeks to 9 months, some just past the 90-day warranty
Several arrived damaged; it is heavy to move

Sunny SF-X7110 Smart Ultra Curved Manual Treadmill

Curved trainer for walking and runningSunny Health & Fitness Smart Ultra Manual Treadmill, Curved, Non-Motorized, 8 Levels of Magnetic Resistance - SF-X7110

Max user 330 lbBelt 59 x 17.7Incline noneFolds no

Premium tierCheck price on Amazon

Related comparisons

Full specs: Goplus Superfit 4.75HP 2-in-1, Sunny SF-X7110 Smart Ultra Curved Manual 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 Goplus Superfit 4.75HP 2-in-1 and Sunny SF-X7110 Smart Ultra Curved Manual Treadmill?

The Sunny SF-X7110 Smart Ultra Curved Manual Treadmill, rated 330 lb, against 265 lb for the Goplus Superfit 4.75HP 2-in-1.

Which is better for tall people?

The Sunny SF-X7110 Smart Ultra Curved Manual Treadmill has the longest belt at 59 inches, which suits walkers up to about 9'6" at slow desk pace (8'4" with 6 inches of room to drift), and up to about 7'7" for brisk walking, by our belt rule.

Which is lighter to move?

The Goplus Superfit 4.75HP 2-in-1 at 106 lb.