FLYBIRD DB2 Quick Adjustable Dumbbell, 55 lb, Set of 2 vs PowerBlock Elite EXP Adjustable Dumbbells, Stage 1, 5-50 lb Pair
These are side-by-side facts taken from each product guide: published specifications, strengths and caveats as their sources state them. This page is not a test, a ranking or a verdict about which model is better.
FLYBIRD DB2 Quick Adjustable Dumbbell, 55 lb, Set of 2
Big weight jumps rather than small progressive steps
A pair of dial-adjusted dumbbells with just five settings, 15 to 55 pounds in 10 pound steps, and a tray each. The dial must only be turned while the dumbbell sits in its tray, and you listen for a click and check the handle alignment before lifting. One year of warranty, shipped in two boxes.
Published specifications
- Maker page: five settings, 15, 25, 35, 45 and 55 lb, 10 lb steps
- Maker page: 19 in L x 8.5 in W x 8 in H per dumbbell; 1 in handle
- Maker page: 8 plates total, about 7.7 in plate diameter, rotating dial
- Manual: do not turn the dial when the dumbbell is out of the tray
- Manual: listen for the click and align the handle with the scale mark before lifting
- Maker page: one-year warranty, 30-day money-back guarantee
Strengths
- One-handed dial change with a tray included for each dumbbell
- Maker publishes plate count, plate diameter and exact dimensions
- Thirty-day money-back guarantee stated on the maker's own page
Caveats
- Only five settings, with nothing under 15 pounds and 10 pound jumps
- Nineteen inches long per dumbbell at every setting
- One-year warranty with no component breakdown published
Read the full FLYBIRD DB2 Quick Adjustable Dumbbell, 55 lb, Set of 2 guide
PowerBlock Elite EXP Adjustable Dumbbells, Stage 1, 5-50 lb Pair
Home lifters who want to expand the same handles later
A pair of pin-selected block dumbbells running from 5 to 50 pounds per hand, with two 2.5 pound micro weights inside each handle for the half steps. PowerBlock's manual is strict: lift from the centre grip only, keep the pin tethered, and never drop them, because dropping voids the five-year warranty.
Published specifications
- Listing: sold in pairs, Stage 1, 5 to 50 lb per hand
- Manual: handle alone is 5 lb; two micro weights of about 2.5 lb each
- Manual: selector pin must stay on its tether cord at all times
- Manual: lift from the centre grip only; raise 5 in and inspect the pin
- Manual: five-year limited warranty, original purchaser, home use only
- Stage 2 kit reaches 70 lb, Stage 3 reaches 90 lb, both sold separately
Strengths
- Expandable to 70 or 90 pounds per hand using the same handles
- Micro weights give 2.5 pound steps at the light end of the range
- PowerBlock publishes the full owner's manual and a weight range chart
Caveats
- Dropping them from any height voids the warranty, in the maker's own words
- No stand included, and neither document gives the length at each setting
- Expansion kits fit only Elite EXP, not other PowerBlock dumbbells
Read the full PowerBlock Elite EXP Adjustable Dumbbells, Stage 1, 5-50 lb Pair guide
How to choose between them
Choose the FLYBIRD DB2 Quick Adjustable Dumbbell, 55 lb, Set of 2 if your situation matches: Big weight jumps rather than small progressive steps. Its main caveat: Only five settings, with nothing under 15 pounds and 10 pound jumps.
Choose the PowerBlock Elite EXP Adjustable Dumbbells, Stage 1, 5-50 lb Pair if your situation matches: Home lifters who want to expand the same handles later. Its main caveat: Dropping them from any height voids the warranty, in the maker's own words.
Both entries repeat what each guide records. Confirm the model, included parts and availability on the current listing before ordering.
Primary sources
- Maker product page for the Flybird Series DB2 Quick Adjustable Dumbbell 55LBS Source for FLYBIRD DB2 Quick Adjustable Dumbbell, 55 lb, Set of 2
- Flybird 55LBS Quick Adjustable Dumbbell user manual (maker PDF, safety page read by render) Source for FLYBIRD DB2 Quick Adjustable Dumbbell, 55 lb, Set of 2
- PowerBlock Elite EXP Owner's Manual, Version 2, updated 06.2025 Source for PowerBlock Elite EXP Adjustable Dumbbells, Stage 1, 5-50 lb Pair
- PowerBlock Elite EXP Weight Range Guide Source for PowerBlock Elite EXP Adjustable Dumbbells, Stage 1, 5-50 lb Pair
- PowerBlock instruction manual index listing the Elite EXP documents Source for PowerBlock Elite EXP Adjustable Dumbbells, Stage 1, 5-50 lb Pair
Primary sources checked .