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Sunny Health & Fitness SF-RW5713 Obsidian Surge Review

Sunny Health & Fitness SF-RW5713 Obsidian Surge

Sunny Health & Fitness SF-RW5713 Obsidian SurgeI’m unsure of the precise “full” identify, however I feel it’s the Sunny Health & Fitness SF-RW5713 Obsidian Surge Water Rower.

I’ve seen it referred to as all totally different names, so don’t thoughts all of the variations on this assessment!

No matter you need to name it, simply comprehend it’s a superb price range water rower.

With robust, clean resistance and nice high quality, the SF-RW5713 has shortly grow to be a prime vendor.

Particularly now that individuals are beginning to perceive rowing is a full-body, low-impact exercise that workouts 85% of your muscle tissue!

The Obsidian Surge 500 has many nice advantages that you’ll uncover under. Nevertheless, like all merchandise, it has a number of downsides and a few competitors. Learn under for the entire particulars on this mannequin.

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Desk of Contents
(click on a title to leap forward!)
1. Resistance Sort
2. Monitor/Management Panel
Three. Construct High quality
four. Consolation
5. Storage
6. Capability
7. Dimensions
eight. Meeting
9. Execs and Cons
10. Shopper Critiques
11. Guarantee
12. Worth
13. General Review

Resistance Sort

The Sunny Health & Fitness SF-RW5713 is a water resistance rowing machine.

Water resistance operates by pulling the deal with and spinning the paddles suspended within the tank of water.

As you pull the deal with, the paddles should “move” the water in entrance of them, thus inflicting the resistance.

The quicker you row, the quicker the paddles spin, and the extra water they need to transfer. So the quicker you row, the extra resistance you create!

We name this “variable” resistance as a result of the quantity of resistance is dependent upon the velocity at which you row.

This is identical approach the resistance operates on air rowing machines. You possibly can see how air and water resistance rowers examine to one another by studying my article right here.

There are additionally “adjustable” resistance rowing machines reminiscent of magnetic and hydraulic-piston which you can study extra about right here.

SF-RW5713 Obsidian Surge Resistance Execs

Water rowing machines create a clean and quiet rowing stroke and that’s no totally different on the Obsidian Surge!

There are Three stainless-steel “Hydro Blades” suspended within the water tank to offer dynamic resistance that seems like you’re rowing on water!

Customers felt the resistance general was clean, even, and enough for all health ranges. One consumer commented that’s wasn’t as robust as a Concept2 on a degree 10 however it was greater than sufficient for an ideal exercise.

SF-RW5713 Water Resistance

One main advantage of water resistance is the noise quantity is far decrease than an air rower. Individuals take pleasure in with the ability to row whereas watching TV or permitting different relations to relaxation with out being irritated by their exercise.

A whole lot of customers even discover the water sound to be meditative and use it as a option to loosen up!

Tips on how to Improve Depth

The water resistance on the Obsidian Surge SF-RW5713 operates utilizing the “Rule of Cubes”. This rule states:

“The resistance in rowing is due to the drag of the water moving over the hull of the boat. By the laws of hydrodynamics, this resistance/drag varies to the cube of the velocity/speed. The rule of cubes therefore dictates that a doubling of the speed of the boat will require an eight-fold increase in resistance.” –WaterRower

This implies to really feel extra resistance, simply row quicker!

It’s also possible to change the texture of the rowing stroke by including or subtracting water from the tank. Whereas technically this doesn’t change the “resistance” it does make the rowing stroke really feel heavier or lighter. Kind of like rowing a ship by your self or with individuals inside.

To vary the water degree, you should use the siphon and funnel that include the rowing machine.

This does take a couple of minutes to carry out however it’s the similar technique used on the far more costly WaterRower rowing machines. Nevertheless, some water rowing machines just like the FDF Newport Problem, have an adjustment knob that may switch water between two chambers.

Resistance General

General the Obsidian SF-RW5713 has wonderful water resistance that rivals any water rowing machine in it’s worth vary.

Customers felt the resistance was clean, robust and gave them an entire full-body exercise. Plus, the sound of the resistance is agreeable!

The one challenge some customers talked about is having to regulate the water ranges manually.

Monitor/Management Panel

The Obsidian Surge 500 Water Rowing Machine comes outfitted with the R2 Fitness Meter. This digital monitor is designed to trace all important exercise metrics comparable to:

  • Complete Time
  • 500m Cut up Time
  • Strokes per Minute (SPM)
  • Complete Strokes
  • Distance
  • Energy
  • Coronary heart Price
  • Room Temperature

As you’ll be able to see the monitor tracks greater than sufficient knowledge to get an incredible exercise! Plus, it’s very nicely organized in straightforward to learn sections.

Surge Water Rower Monitor

The monitor will activate by urgent any button and can flip off after four minutes of inactivity. When inactive, the monitor will show the present time. 2AA batteries are included to get you setup and rowing quick!

Monitor Options

The Sunny Health & Fitness SF-RW5713 monitor has numerous nice options in addition to monitoring a ton of knowledge factors!

Customers should purchase a suitable coronary heart price monitor individually and have their coronary heart price displayed on the monitor as they row. Suitable with ANT+ coronary heart fee know-how or any 5.Three kHz HR chest strap transmitter. Here’s a record of the bestselling coronary heart fee screens.

You’ll be able to then use the HRM to trace your health degree by choosing “Recovery” after a exercise. The monitor will then calculate a rating based mostly in your coronary heart fee and how briskly you’ll be able to get well.

The monitor additionally has a number of choices to pick from when beginning. You’ll be able to simply start rowing and have the metrics begin counting. You may as well pre-select a worth reminiscent of Time or Distance and have the monitor rely down.

There’s additionally a “Race” function the place you possibly can choose the tempo of an “on-screen” digital boat and race it to the end!

Monitor Downsides

There have been just a few downsides talked about concerning the Obsidian Surge 500 monitor.

One grievance was concerning the monitor not having a back-light and being troublesome to learn in low-light settings.

The opposite being a grievance concerning the accuracy of the info in comparison with the WaterRower and Concept2 fashions. Whereas I perceive this individuals concern, they’ve to comprehend the SF-RW5713 value half as a lot because the fashions they’re evaluating it to!

In case you are in search of very correct distance and calorie calculations, then sure, shifting as much as the Concept2 or WaterRower is a good suggestion. Nevertheless, if you wish to keep within the lower cost vary and have “good” and never “highly accurate” knowledge, then this can be a nice selection!

Monitor General

General, the Obsidian SF-RW5713 monitor has acquired favorable critiques and never many complaints.

It could actually monitor sufficient knowledge to maintain a consumer engaged throughout a exercise, whereas additionally with the ability to monitor general progress as a consumer turns into extra skilled.

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Construct High quality

Construct high quality is such an essential function on mid-range rowing machines as a result of it’s typically the place you see probably the most unfavourable responses.

It’s troublesome for manufactures to stability the elements of high quality and price when being caught between high-end fashions and price range fashions.

Fortunately, the Obsidian Surge 500 Water Rower appears to have their high quality so as as a result of it hasn’t acquired many complaints!

Surge 500 Build Quality

The body is constructed from light-weight, sturdy metal and the three hydro-blades are made from chrome steel. This implies no rusting or sporting down over time!

The water tank is constructed from polycarbonate plastic, which is extraordinarily robust and sturdy. There have been no points with the tank breaking, cracking or leaking.

Customers felt the seat, rollers, deal with, and rowing strap have been all comprised of top quality supplies. The SF-RW5713 additionally comes with “leveling caps” so your rower all the time feels robust and secure.

Most customers felt the footrests and strap have been robust however a number of did have a problem with a screw or weld breaking. Fortunately, Amazon was in a position to make sure the rower was changed with out having to ship the unit again.

General, the construct high quality on the Sunny Health & Fitness SF-RW5713 was wonderful for a water rowing machine at this worth! Test it out in motion under:

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Consolation is one other function that’s extraordinarily necessary on a rowing machine. In case you aren’t snug in your rower, you aren’t going to make use of it!

The Obsidian SF-RW5713 encompasses a molded, padded seat to make sure consolation on lengthy, onerous rowing periods. It’s giant sufficient for any consumer at 10.zero″ x 12.5″ and it additionally sits 17.zero″ off the ground. This taller than common seat peak helps forestall individuals from placing additional stress on their knees and again when getting on and off the rower.

The seat sits on Three units of rollers and bearings to permit for a clean, quiet rowing stroke. Customers commented how the Obsidian Surge 500 was very quiet and you possibly can simply watch TV whereas rowing.

SF-RW5713 Comfort

It’s outfitted with a non-slip sweat resistant deal with that’s broad sufficient to account for various grips.

The one controversial consolation design comes from the foot pedals. Whereas they maintain your ft comfortably in place, they do pivot as you row. Some individuals benefit from the pivoting foot pedals as a result of they don’t seem to be versatile and it helps with their ankle mobility.

Nevertheless, others want the foot pedals have been fastened in place, such as you see on the WaterRower and Concept2 fashions. One consumer even screwed them in place!

General, there have been only a few complaints concerning the consolation options of the SF-RW5713 Water Rowing Machine.

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Some customers will depart the rower out when not in-use, so it may be simply used on a regular basis. Others want to save area and retailer the rower after every session.

These individuals are in luck as a result of the Sunny Health & Fitness SF-RW5713 has very straightforward storage capabilities!

Merely raise from the rear and roll the rower ahead on the high-density rubber wheels that forestall making any marks in your flooring.

Then carry the rower vertical in your required location. It’s greatest saved towards a wall or within the nook of a room.

Surge 500 Water Rower Storage

Upright storage

The rower will relaxation on a entrance “end-cap” that’s designed to carry the rower upright. There isn’t a have to empty any water from the tank and it doesn’t really feel heavy in any respect!

When saved the Obsidian Surge 500 measures: 33.46″L x 22.05″W x 78.74″H

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The Obsidian SF-RW5713 has a pretty big capability and is in-line with most different rowing machines on this worth vary.

The seat rail measure 49.00″, which ought to be good for customers as much as 6’four″ tall. In case you are over 6’four″, I might advocate measuring your inseam size and contacting the producer to double verify.

Sunny Health & Fitness Surge 500 Capacity

The load capability is listed at 250 lbs. however that is often a conservative estimate. I might be snug saying somebody who’s 300 lbs. would have the ability to use this mannequin with none points. Nevertheless, this technically would void the guarantee and will include extra danger of damage.

Invoice, considered one of our readers commented that after buying the Obsidian Surge he observed the load capability sticker now says 300 lbs. Whereas the web site hasn’t been up to date but, I assume they’ve elevated the restrict!!

Anybody under these limits might be positive to make use of the Obsidian Surge 500. There are not any elements that might inhibit shorter customers or youngsters from rowing.

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  • Assembled Dimensions: 
    • 78.74″ x 22.05″ x 33.46″ (L x W x H)
  • Saved Dimensions:
    • 33.46″ x 22.05″ x 78.74″ (L x W x H)
  • Assembled Weight
  • Delivery Dimensions:
    • 42.74″ x 22.four″ x 20.5″ (L x W x H)
  • Delivery Weight: 

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Meeting of the Sunny Health & Fitness Water Rowing Machine is pretty straight ahead however will take about 45 minutes. I might give myself about an hour and plan on taking my time and studying all of the directions.

Assembling the rowing machine might be accomplished by 1 individual. The directions are straightforward to learn, the items are labeled, and it comes with all the required instruments.

Probably the most troublesome a part of the meeting is including the water to the tank. You’ll have to use a bucket of water and the included pump with syphon hose. Simply take a bucket of water, insert the pump, and starting pumping the water into the tank. You possibly can fill the tank to your required resistance degree, which is marked on the aspect. The tank holds about 2-Three gallons of water at max degree.

The rowing machine comes with water purification tablets that you should add to the tank to stop the water from turning into molded.

After that, simply pop within the 2 batteries which might be included and you’re prepared to start out rowing!

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Execs and Cons


  • Clean, quiet water resistance
  • Adjustable water degree supplies robust resistance
  • Nice worth for water rowing machine!
  • Multi-function monitor is nice for the worth
  • Wonderful construct high quality
  • Straightforward upright storage to save lots of area
  • 17.zero″ seat peak for nice consolation
  • Straightforward meeting


  • No backlight on monitor
  • No coronary heart price monitor
  • Should use siphon so as to add or subtract water
  • Common guarantee

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Shopper Critiques

General the Sunny Health & Fitness SF-RW5713 Obsidian Surge evaluations have been very constructive. Shoppers are glad to have the ability to buy a water resistance rowing machine at a terrific worth. They felt the construct high quality was nice, it has a very good monitor, and it’s snug to row on.

There have been only a few adverse feedback and most associated to watch performance and filling the water tank. Nevertheless, most of those individuals have been evaluating the Obsidian Surge 500 to rowing machines over 2x the worth!

Learn right here for extra Obsidian Surge SF-RW5713 Water Rower evaluations

Common Score: four.four

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  • Body: Three-Years
  • Elements & Elements: 90-Days
  • Mannequin #: SF-RW5713

The three-year body and 90-day elements guarantee is fairly normal with Sunny Health & Fitness gear. They’re fairly good about getting clients spare elements and fortunately Amazon will step-in in the event that they attempt to make clients pay for gadgets beneath guarantee.

I do want the elements guarantee was a bit longer than 90-days however that is what they provide for all their decrease priced rowing machines.

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The worth on this Sunny Health & Fitness Water Rowing Machine is likely one of the major promoting factors. It is among the lowest priced water rowers available on the market and is a superb mix of high quality and price. Sunny Health & Fitness solely sells via third social gathering web sites and is a highly regarded vendor on Amazon.

I really feel Amazon is a superb place to buy from as a result of they provide nice costs, free delivery on certified orders, and a layer of safety between the customer and vendor.

Examine present pricing reductions:

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General Review

In case you are in search of a really low value water rowing machine then I feel the Obsidian SF-RW5713 is among the greatest choices.

As I discussed, it has nice construct high quality, robust water resistance, and sells for an incredible worth!

I rated it greater than it’s essential competitor, the Stamina Wave 1445, as a result of it has much less high quality points. If you wish to take a look at my Stamina 1445 evaluation simply go to my assessment right here.

In case you are in search of one thing with a bit extra high quality and a greater monitor, then I might recommend the WaterRower A1 House Rowing Machine or the First Diploma Fitness Newport Problem. They are going to be within the subsequent worth vary up however can supply a couple of extra advance options. To seek out my evaluations on these simply go to my comparability desk right here and type by “water” resistance.

As you’ll have seen when doing all of your analysis, the Concept2 Mannequin D is usually advisable because the #1 bestselling rowing machine available on the market. It’s the mannequin I personal and use on a regular basis, however it’s extra bills. You possibly can test it out right here in case you are .

I hope you loved my Sunny Health & Fitness SF-RW5713 Obsidian Surge evaluation! Please depart any questions or remark under!

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Filed beneath: $250 – $499 • Evaluations • Sunny • Water