Hex vs round dumbbells (2026)
Both official products are fixed-weight pairs from the same maker. The choice is head shape and coating, plus the official pair prices we could confirm, not a remake of adjustable versus fixed.
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How this page was made: this is a research-based guide built from manufacturer spec pages, official prices and published findings from the outlets we name and link. We haven’t tested these products ourselves, and we don’t invent scores. Our methodology.
Quick answer
Choose REP Hex Dumbbells (LB) ($39.99) if you want official hex heads that sit flat, at the confirmed 5/20/50 lb example prices. Choose REP Urethane Dumbbells (LB) ($49.99) if you want official urethane round pairs with published 6.0" / 32mm or 34mm handles or you want the official lifetime home-use warranty line and can pay the higher pair prices.
Last updated Prices checked Nov 2026
Check REP Hex Dumbbells (LB) price (opens in a new tab)Check REP Urethane Dumbbells (LB) price (opens in a new tab)
Key facts at a glance
| REP Hex Dumbbells (LB) | REP Urethane Dumbbells (LB) | |
|---|---|---|
| Confirmed official pair prices (Nov 2026) | Examples from the official hex page: 5 lb $39.99, 20 lb $94.99, 50 lb $214.99, 125 lb $539.99. A 10 lb pair price was not in the extract | Official individual pairs on the urethane page: 5 lb $49.99, 10 lb $79.99, 15 lb $99.99, 20 lb $129.99, 25 lb $169.99. Heavier official pairs and set totals above those lines were not clearly isolated in the extract, so we do not invent them |
| Head shape and coating | Rubber hex heads, per the official hex product. A hex head sits flat and does not roll the way a round head can | Solid steel with a CPU urethane coating and round heads, with bright weight markings. Official copy describes urethane as more expensive than rubber and more abrasion-resistant over time — that is the maker’s material comparison, not a lab test from us |
| Handles (where officially published) | Handle dimensions were not a clearly isolated official table in the hex extract we are citing for prices, so we do not invent them | Total handle length 6.0"; knurled length 4.8" on all sizes. Diameter 32mm on 5–50 lb and 34mm on 55–150 lb. Official 1% weight tolerance |
| Sets and racks | Sold as official pairs; see the official hex page for current increments | Sold as official pairs in 5 lb increments from 5–50 lb, plus several official set options (5–50, 5–75, 5–100, 55–75, 80–100, 105–125, 130–150 lb). Official copy: racks are not included, and set size changes how many official racks you would need |
| Warranty (official) | Confirm the live hex warranty line at checkout; we only cite warranty terms we clearly extracted on the urethane page in this run | Lifetime warranty for home use and a 1-year warranty for commercial use, with the usual official asterisk |
We compared official REP rubber hex dumbbell pairs and official REP urethane-coated round dumbbell pairs from their product pages, both fetched November 10, 2026, plus official Bowflex SelectTech 552, PowerBlock Pro 100 EXP and REP Adjustable Kettlebells pages fetched the same day so this stays distinct from our adjustable-versus-fixed comparison. We have not used these pairs ourselves, and we don’t give scores. Confirm live pair or set price, increment and rack (racks are not included on the official urethane page) before you buy.
Choose official REP rubber hex pairs if you want a hex head that will not roll and the lower official example prices we confirmed on November 10, 2026: 5 lb $39.99, 20 lb $94.99, 50 lb $214.99, with a 125 lb pair also listed at $539.99 (a 10 lb pair price was not in that extract). Choose official REP urethane round pairs if you want CPU urethane-coated round heads and can pay the official round prices from the same day: 5 lb $49.99, 10 lb $79.99, 15 lb $99.99, 20 lb $129.99, 25 lb $169.99. Official urethane handles are 6.0" long with 4.8" of knurling; handle diameter is 32mm on 5–50 lb pairs and 34mm on 55–150 lb pairs, with a 1% weight tolerance and a lifetime home-use warranty (1-year commercial). This is a shape-and-coating decision, not another adjustable-dumbbell guide.
REP Hex Dumbbells (LB) vs REP Urethane Dumbbells (LB): side-by-side
| REP rubber hex pairs | REP urethane round pairs | |
|---|---|---|
| Confirmed official pair prices (Nov 2026) | Examples from the official hex page: 5 lb $39.99, 20 lb $94.99, 50 lb $214.99, 125 lb $539.99. A 10 lb pair price was not in the extract | Official individual pairs on the urethane page: 5 lb $49.99, 10 lb $79.99, 15 lb $99.99, 20 lb $129.99, 25 lb $169.99. Heavier official pairs and set totals above those lines were not clearly isolated in the extract, so we do not invent them |
| Head shape and coating | Rubber hex heads, per the official hex product. A hex head sits flat and does not roll the way a round head can | Solid steel with a CPU urethane coating and round heads, with bright weight markings. Official copy describes urethane as more expensive than rubber and more abrasion-resistant over time — that is the maker’s material comparison, not a lab test from us |
| Handles (where officially published) | Handle dimensions were not a clearly isolated official table in the hex extract we are citing for prices, so we do not invent them | Total handle length 6.0"; knurled length 4.8" on all sizes. Diameter 32mm on 5–50 lb and 34mm on 55–150 lb. Official 1% weight tolerance |
| Sets and racks | Sold as official pairs; see the official hex page for current increments | Sold as official pairs in 5 lb increments from 5–50 lb, plus several official set options (5–50, 5–75, 5–100, 55–75, 80–100, 105–125, 130–150 lb). Official copy: racks are not included, and set size changes how many official racks you would need |
| Warranty (official) | Confirm the live hex warranty line at checkout; we only cite warranty terms we clearly extracted on the urethane page in this run | Lifetime warranty for home use and a 1-year warranty for commercial use, with the usual official asterisk |
What are the pros and cons?
REP Hex Dumbbells (LB): pros
- Lower official example prices on the pairs we could confirm (5, 20 and 50 lb)
- Hex heads sit flat, which matters on a bench or open floor
- Same-maker official fixed-weight option if you already like REP’s catalog
REP Hex Dumbbells (LB): cons
- A 10 lb official pair price was not in the extract we opened, so that increment is a “check current price” line
- Official handle-diameter details were not clearly isolated in the hex extract we are using here
- Rubber hex is a different coating and look from official urethane round heads
REP Urethane Dumbbells (LB): pros
- Clear official pair prices from 5 lb through 25 lb, plus published handle length and diameter by weight band
- Official CPU urethane coating, 1% tolerance and a lifetime home-use warranty line
- Official set options if you want to buy a range rather than one pair
REP Urethane Dumbbells (LB): cons
- Higher official prices than the hex examples we confirmed at 5, 20 and 50 lb
- Round heads can roll if you set them on an open floor; official racks are not included
- Official dollar totals for the larger sets were not clearly isolated in the extract, so we do not invent a 5–50 lb set price
Which should you choose: REP Hex Dumbbells (LB) or REP Urethane Dumbbells (LB)?
Choose REP Hex Dumbbells (LB) if…
- You want official hex heads that sit flat, at the confirmed 5/20/50 lb example prices
- You are adding fixed pairs and do not need the official urethane handle-diameter table
Choose REP Urethane Dumbbells (LB) if…
- You want official urethane round pairs with published 6.0" / 32mm or 34mm handles
- You want the official lifetime home-use warranty line and can pay the higher pair prices
Who should skip this
- Shoppers deciding between adjustable and fixed dumbbells. That is a separate page. This one stays on official hex versus official round fixed pairs.
- People who needed a third brand’s official hex or urethane line. We officially priced two REP products.
- Buyers who wanted us to invent a 5–50 lb urethane set total. That official total was not clearly isolated in the extract.
Frequently asked questions
Is a 20 lb official hex pair cheaper than a 20 lb official urethane pair?
Do official urethane sets include a rack?
Sources
Pricing and plan details were checked on the official pages below as of Nov 2026. Vendors change prices, credits and plan names often, and some show regional pricing at checkout, so confirm on the vendor’s site before you buy.
- REP rubber hex dumbbell pairs official page (fetched Nov 10, 2026) (repfitness.com)
- REP urethane-coated round dumbbell pairs official page (fetched Nov 10, 2026) (repfitness.com)
- Bowflex Results Series 552 SelectTech official page (fetched Nov 10, 2026; adjustable context only) (bowflex.com)
- PowerBlock Pro 100 EXP official page (fetched Nov 10, 2026; adjustable context only) (powerblock.com)
- REP Adjustable Kettlebells official page (fetched Nov 10, 2026; expandable-weight context only) (repfitness.com)
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