Spinning Reels · owner-verdict comparison

KastKing Sharky III vs Penn Battle IV: what real owners say

Real owners rate these about evenly: 81% of 58 KastKing Sharky III owners recommend it, vs 79% of 14 for the Penn Battle IV.

Verdicts aggregated from Reddit, enthusiast forums, and YouTube owner comments — affiliate reviews excluded. Sample sizes differ; judge accordingly. How we score

KastKing Sharky III

81%of 58 owners recommend
81% recommend · 7% neutral · 12% don't
Owners praise
  • Excellent value for the low price
  • Holds up to saltwater with little corrosion thanks to sealed bearings
  • Remarkably smooth casting and retrieve, smooth as butter
Owners complain about
  • Internals can give out, with a couple owners reporting the reel falling apart
  • Thin main gear seen as a likely eventual failure point
  • Gets slightly less smooth after about a year of frequent fishing
Full owner report →

Penn Battle IV

79%of 14 owners recommend
79% recommend · 7% neutral · 14% don't
Owners praise
  • Owners repeatedly call it a "tank", strong enough to land leopard sharks, rays, and shovelnose guitarfish off the surf without flinching.
  • Widely regarded as outstanding value, with several owners saying it's a "badass reel for the price" and great quality for the money.
  • A dependable saltwater workhorse for inshore and surf fishing, owners report it holding up great over multiple seasons.
Owners complain about
  • A few owners note sand can work into the drag after dunking it in the surf, requiring them to back off and clear the drag or pull the spool to clean it.
  • The larger sizes carry some weight, and at least one owner found a bigger model tiring on the arms over a long session.
Full owner report →

Which should you buy?

Get the KastKing Sharky III if
  • ✓Budget-minded anglers wanting strong value
  • ✓Saltwater fishing needing corrosion resistance
  • ✓Anglers landing bigger fish like catfish or snapper
  • ✓Both freshwater and saltwater use
Skip it if
  • Anglers wanting reels that stay smooth without maintenance
  • Those needing proven long-term gear durability
Get the Penn Battle IV if
  • ✓Inshore saltwater anglers wanting a strong everyday reel
  • ✓Surf anglers targeting sharks and rays
  • ✓Budget buyers wanting durability and power for the price
  • ✓Anglers matching reel size to their specific application
Skip it if
  • Anglers who frequently dunk reels in sand and surf
  • Those wanting the lightest reel for long sessions

What KastKing Sharky III owners say

“But a great purchase.”
— @александртрунин-ю4х on YouTube
“I’ve had no issues”
— @chrismcvey908 on YouTube
“My anti reverse is going out of my 2000”
— @tylerwachter6381 on YouTube

What Penn Battle IV owners say

“The 4000 works perfect for me.”
— @randyr6610 on YouTube
“I would recommend this reel to beginners.”
— @btop3028 on YouTube
“I have a Penn Battle IV and I find if I dunk it even briefly in surf I have to let the drag all the way out and then strip a bunch of line, then slowly tighten the drag down again otherwise the drag will start to tighten itself as it pulls out. I feel like it is basically clearing the sand out of the drag itself and leaving it in the spool.”
— veteran_grognard on Reddit

KastKing Sharky III vs Penn Battle IV: frequently asked questions

Is the KastKing Sharky III or the Penn Battle IV better?

Real owners rate these about evenly: 81% of 58 KastKing Sharky III owners recommend it, vs 79% of 14 for the Penn Battle IV.

Who should get the KastKing Sharky III?

Owners point the KastKing Sharky III at budget-minded anglers wanting strong value, and saltwater fishing needing corrosion resistance.

Who should get the Penn Battle IV?

Owners point the Penn Battle IV at inshore saltwater anglers wanting a strong everyday reel, and surf anglers targeting sharks and rays.

What do owners complain about?

The most-cited downside of the KastKing Sharky III is internals can give out, with a couple owners reporting the reel falling apart. For the Penn Battle IV, it's a few owners note sand can work into the drag after dunking it in the surf, requiring them to back off and clear the drag or pull the spool to clean it..