Core Fitness Adjustable Dumbbell Weight Set by Core Home Fitness vs FLYBIRD DB2 Quick Adjustable Dumbbell, 55 lb, Set of 2
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.
Core Fitness Adjustable Dumbbell Weight Set by Core Home Fitness
Home training where the cradles can stay on the floor
A pair of twist-adjusted dumbbells covering 5 to 50 pounds in ten 5 pound steps, supplied with two aluminium cradles. The weight can only be changed while the handle is seated in its cradle, the dumbbell gets longer as you load it, and the maker gives two years on parts.
Published specifications
- Maker page: two dumbbells, two cradles and an exercise guide; 100 lb pair weight
- Manual: 10 settings from 5 to 50 lb in 5 lb steps; handle alone is 5 lb
- Manual: weight changes only while the handle is docked in the cradle
- Maker page: 9.3 in long at 5 lb; 14.5 x 7.9 x 7.5 in fully loaded
- Manual: cradle combined weight limit 100 lb; home indoor use only
- Warranty: two years, parts, per the maker page and the listing
Strengths
- One-handed twist adjustment with no pins or levers to line up
- Both cradles are included, and the maker publishes the full manual
- Ten evenly spaced 5 pound settings from 5 to 50 pounds
Caveats
- Weight cannot be changed unless the dumbbell is back in its cradle
- Dropping them from any height is treated as abuse and is not covered
- The maker's SKU does not match the Amazon model number field
Read the full Core Fitness Adjustable Dumbbell Weight Set by Core Home Fitness guide
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
How to choose between them
Choose the Core Fitness Adjustable Dumbbell Weight Set by Core Home Fitness if your situation matches: Home training where the cradles can stay on the floor. Its main caveat: Weight cannot be changed unless the dumbbell is back in its cradle.
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.
Both entries repeat what each guide records. Confirm the model, included parts and availability on the current listing before ordering.
Primary sources
- Core Home Fitness TwistLock Dumbbell owner's manual (maker PDF supplied on the listing) Source for Core Fitness Adjustable Dumbbell Weight Set by Core Home Fitness
- Core Home Fitness product page for the Adjustable Dumbbell Set, 5 to 50 lb Source for Core Fitness Adjustable Dumbbell Weight Set by Core Home Fitness
- 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
Primary sources checked .