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Sunny Health & Fitness SF-T7705SMART Treadmill vs Merach Folding Incline Treadmill

The Merach is the sturdier machine: a 3.5 hp motor and a 350 lb user limit against Sunny's 2.2 hp and 220 lb. The Sunny counters with a 12% auto-incline, 15 resistance levels, heart-rate monitoring and the free SunnyFit app with trainer-led workouts. Pick the Sunny for guided, incline-heavy walking and jogging by lighter users; pick the Merach for heavier runners who want a wider belt and more motor headroom.

  • Choose the Sunny Health & Fitness if you want app-guided workouts, automatic incline changes and heart-rate tracking in a compact folding frame.
  • Choose the Merach if you are a heavier or faster runner who needs a wide belt, a stronger motor and a higher weight limit.

Prices

  • Sunny Health & Fitness SF-T7705SMART Treadmill: $649.99 at Walmart (last seen Nov 10)
  • Merach Folding Incline Treadmill: $699.99 at Best Buy (last seen Nov 10)
  • Difference: the Sunny Health & Fitness SF-T7705SMART Treadmill is $50.00 cheaper than the Merach Folding Incline Treadmill at the latest prices (Nov 10)
Sunny Health & Fitness
Sunny Health & Fitness Premium Folding Incline Treadmill

Sunny Health & Fitness SF-T7705SMART Treadmill

Sunny Health & Fitness Premium Folding Incline Treadmill

4.2(70 ratings)
$649.99at WalmartChecked 22 h ago
See all prices and details
Visit Walmart
Pros
  • Automatic incline across 15 levels up to 12%
  • Free SunnyFit app with trainer-led and scenic workouts
  • Heart-rate monitoring and Bluetooth connectivity
  • Folds down small for tight rooms
  • Three-year manufacturer warranty
Cons
  • 2.2 hp motor is modest for fast running
  • 220 lb user limit rules out heavier users
  • Narrow 15.7 in belt
  • Rated 4.2 out of 5, so a fair share of owners are not fully satisfied
Merach
Merach Folding Incline Treadmill 3.5HP Wide Belt

Merach Folding Incline Treadmill

Merach Folding Incline Treadmill 3.5HP Wide Belt

$699.99at Best BuyChecked 22 h ago
See all prices and details
Visit Best Buy

Store links may earn us a commission. Price via Klarna.

Pros
  • 3.5 hp motor handles faster, longer runs
  • 350 lb user limit suits heavier users
  • Wide belt gives more room for running
  • Folds for storage
Cons
  • Top speed of 8.7 mph is slightly lower
  • No app ecosystem or trainer content listed
  • No heart-rate monitor listed
  • Fewer published specs, so less to compare up front

What separates them

Sunny Health & Fitness SF-T7705SMART TreadmillMerach Folding Incline Treadmill
Motor2.2 hp3.5 hp
Max user weight220 lb350 lb
Running belt width15.7 inWide belt, wider than Sunny's
InclineAutomatic, 15 levels up to 12%Incline, manual levels
Top speed9 mph8.7 mph
Workout guidanceFree SunnyFit app: 1,000+ trainer workouts, 10,000+ scenic runsBasic console, no app ecosystem listed
Heart rateBuilt-in heart rate monitorNot listed
Folding footprintFolds to 36.8 in long, 26.2 in wideFolds, dimensions not listed

Price history

  • Sunny Health & Fitness SF-T7705SMART Treadmill: lowest $599.99 on Nov 10 at Dick's Sporting Goods.
  • Merach Folding Incline Treadmill: lowest $699.99 on Nov 10 at Best Buy.

Prices at every store

Sunny Health & Fitness SF-T7705SMART Treadmill

  • WalmartNew

    In stockSold by ZooVaaReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $649.99Checked 22 h ago
    Visit Walmart
  • Dick's Sporting GoodsNew

    In stock

    $599.99+ $85.00 shippingChecked 22 h ago
    Visit Dick's Sporting Goods
  • Lowe'sNew

    In stock

    $716.89Free shippingChecked 22 h ago
    Visit Lowe's
  • Best BuyNew

    In stock

    $749.40Free shippingChecked 22 h ago
    Visit Best Buy

Store links may earn us a commission. Some prices via Klarna.

All 5 stores and price history →

Merach Folding Incline Treadmill

  • Best BuyNew

    In stock

    $699.99Free shippingChecked 22 h ago
    Visit Best Buy

Store links may earn us a commission. Price via Klarna.

Prices and history →

Specs compared

SpecSunny Health & Fitness SF-T7705SMART TreadmillMerach Folding Incline Treadmill
User Weight (Max) (lb)220.0350.0
Speed Limit (max) (mph)9.08.7
Machine Weight (lb)112.0—
Display Size (")20.0—
Width Folded (")26.2—
Power SourceAC Mains—
Number of Programs9—
Type of ResistanceHydraulic—
Running Width (")15.7—
Manufacturer Warranty (years)3—
Inclination (%)12.0—
Type of TreadmillTreadmill—
Show all 22 specsShow fewer specs
SpecSunny Health & Fitness SF-T7705SMART TreadmillMerach Folding Incline Treadmill
Treadmill Length (")48.4—
Width (")26.2—
Motor Effect (hp)2.2—
Height (")50.2—
Number of Resistance Levels (pcs)15—
Height Folded (")56.9—
Length (")63.0—
Length Folded (")36.8—
Size49"L, 15-Incline—
color

What reviewers say

Sunny Health & Fitness SF-T7705SMART Treadmill

  • 4.2 / 570 ratings

Owners rate it around 4.2 out of 5. They like the automatic incline, the folding design and the app connectivity for the category. Complaints center on the narrow belt and the motor straining at higher speeds.

What people mention
  • InclinePraisedOwners like the 15 automatic incline levels and the range up to 12%.
  • FoldingPraisedThe fold-and-roll design is called out as easy to store and move.
  • Belt widthCriticisedThe 15.7-inch belt feels tight for taller or heavier users.
  • MotorMixedFine for walking and jogging, but it strains at the top speeds.

Merach Folding Incline Treadmill

Owners generally find the Merach Folding Incline Treadmill to be a solid value for walking and light jogging, praising its foldability and weight capacity. Some note that it feels less stable at higher speeds and that the incline adjustment is manual.

What people mention
  • PortabilityPraisedReviewers like that it folds compactly for storage.
  • Weight capacityPraisedOwners appreciate the high weight limit that accommodates larger users.
  • StabilityMixedSome find it stable for walking but shaky during jogging.
  • InclineMixedThe incline feature is useful but may be manual on some models.

Questions and answers

Which is better for running versus walking?
The Merach is the better running machine: its 3.5 hp motor, wide belt and 350 lb limit hold up to steady jogging and heavier runners. The Sunny suits walking and light jogging, where its automatic incline and guided workouts add more.
Which lasts longer?
The Merach's stronger motor and higher weight rating suggest more headroom for hard use. The Sunny backs its frame with a three-year warranty, which is a concrete sign of confidence in its build.
Is the Sunny worth stepping up to over the Merach?
Step up to the Sunny only if guided workouts, automatic incline and heart-rate tracking matter more to you than motor power and belt width. If you plan to run hard or weigh over 220 lb, the Merach is the safer choice.
Can two people of different sizes share either one?
The Merach covers a wider range of users because of its 350 lb limit. The Sunny caps at 220 lb, so a heavier household member should not use it.
Which folds smaller?
The Sunny folds to about 37 in long and 26 in wide, which fits closets and corners well. Merach lists folding but not its folded dimensions, so measure your space before buying.
Do I need a subscription for the Sunny's workouts?
No. The SunnyFit app membership comes free with the treadmill and includes trainer-led and scenic workouts. The Merach has no comparable app content listed.

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