FLYBIRD DB2 Adjustable Dumbbell Set, 55LB/110LB Option, 5-in-1 Quick Adjustable Review
Our verdict
At $269.99, the FLYBIRD DB2 gives a 5-in-1 quick adjustable range up to 55 or 110 pounds depending on the option chosen, and it holds a 4.8 star average, the highest of any set in this comparison. With only 87 reviews and 50+ bought last month, it is well liked but still a niche seller next to the category's bigger names.
Check price on AmazonBest for
Lifters who want one pair of dumbbells to replace a whole rack, switching load with a dial instead of swapping plates, and who are comfortable paying $269.99 for the convenience of a 5-in-1 quick adjustable mechanism.
Skip if
Skip it if $269.99 is more than you want to spend on a single pair, or if you would rather buy proven volume. This listing has only 87 reviews, a fraction of the thousands logged by the Yes4All and PowerBlock sets in this same category.
- Priced 354% above the category median ($59.44 across 88 tracked models)
Our scorecard
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Owner rating4.8/5
4.8 average across 87 owner ratings
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Popularity0.6/5
87 owner reviews, fewer than most models here
The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other home gym and fitness equipment we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.
Overview
Anyone who has tried to fit a full rack of fixed dumbbells into a spare bedroom knows the real problem is space, not motivation. The FLYBIRD DB2 is built around that problem, a 5-in-1 quick adjustable pair sold with a 55LB or 110LB option, priced at $269.99. One pair standing in for what would otherwise be five or six sets of fixed weights is the entire pitch, and the rating record backs it up so far: 4.8 stars, the top score of any dumbbell in this comparison.
That said, the sample size is small. Only 87 reviews sit behind that 4.8 average, next to 959 for the JFIT pair, 2,782 for PowerBlock, and 18,568 for Yes4All. Bought last month sits at 50+, which is a real but modest pace against Yes4All's 2,000+ and PowerBlock's 1,000+. The price also lands well above the $7.99 to $20.12 range of the fixed weight options here, though still under PowerBlock's $399.99 for a comparable adjustable system.
Put together, the FLYBIRD DB2 reads as a strong but early-stage seller: high satisfaction from a smaller group of buyers, priced in the middle of the adjustable tier rather than the budget fixed-weight tier. Anyone sold on the adjustable format and comfortable with a newer listing gets a well reviewed option. Anyone who wants a long track record first should watch how the review count grows.
Pros
- 4.8 star average is the highest rating of any dumbbell in this comparison
- 5-in-1 quick adjustable design with a 55LB or 110LB option covers a wide load range in one pair
- Priced at $269.99, well under PowerBlock's $399.99 for comparable adjustable functionality
- 50+ bought in the past month shows active, ongoing demand
- One pair replacing multiple fixed sets saves floor space in smaller home gyms
Cons
- Only 87 reviews back the 4.8 rating, a small sample next to the 959 to 18,568 range elsewhere in this set
- At $269.99 it costs far more than the $7.99 to $20.12 fixed weight options in this comparison
- 50+ bought last month trails the 500+ to 2,000+ pace of the established fixed weight sellers
- Adjustable mechanisms add moving parts that fixed cast iron or neoprene pairs simply do not have
- No detailed material spec was listed for this unit beyond the adjustable weight range itself
Performance notes
The headline spec is the 5-in-1 quick adjustable system with a 55LB or 110LB option, meaning a single pair can be dialed to several load points instead of buying separate fixed pairs for each weight. In practice that kind of mechanism trades a bit of bulk and moving parts for a large reduction in how many dumbbells sit in the room. Compared to PowerBlock's fixed 50 pound pair at $399.99, the FLYBIRD DB2 covers a similar or wider top end range for $269.99, which is a meaningful price gap if the adjustable feature works as described. Quick adjust systems generally trade a little bit of transition speed between weights for the space savings, since a dial or selector takes a moment longer than simply grabbing a different fixed pair, but for someone building a home gym in a small footprint that tradeoff is usually worth it.
What buyers say
A 4.8 star average is the strongest rating of any dumbbell in this comparison, ahead of Yes4All and PowerBlock at 4.7 and JFIT at 4.6. The catch is scale, 87 reviews is a small sample next to the thousands behind those other listings, so the rating is encouraging but not yet proven at volume. 50+ bought in the past month is a real, active pace, just smaller than the 500+ to 2,000+ seen on the established fixed weight sets. Read together, the pattern points to a newer or smaller volume listing that is pleasing the buyers it has, without yet accumulating the review count that would make the rating fully load bearing.
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Frequently asked questions
What does the 5-in-1 quick adjustable feature actually mean?
It refers to the FLYBIRD DB2 offering multiple load settings from one pair of dumbbells rather than requiring separate fixed pairs, with a 55LB or 110LB option depending on which version is purchased. The exact mechanism spec beyond that was not detailed in the listing facts.
Is $269.99 a fair price for this adjustable set?
It sits well below PowerBlock's $399.99 adjustable pair while covering a comparable or higher top end range, and far above the $7.99 to $20.12 fixed weight options in this comparison. For an adjustable system, that price places it in the middle of the category.
Should I worry about only 87 reviews backing the 4.8 rating?
It is worth noting as context. The rating itself is the highest in this comparison, but 87 reviews is a small sample next to the 959 to 18,568 reviews behind the fixed weight alternatives, so the pattern is promising rather than fully proven.