When comparing JBuds J4 vs Shure SE215, the Slant community recommends Shure SE215 for most people. In the question“What are the best rugged and durable earbuds & IEMs that last?” Shure SE215 is ranked 3rd while JBuds J4 is ranked 4th. The most important reason people chose Shure SE215 is:
Bass is emphasized so there is a good bit of thump while staying controlled. Mids are rich, highs avoid sibilance, though they're a bit rolled off. Soundstage is okay--instruments are separated out enough for them to not sound like they're all coming from the same place, but it's not particularly wide.
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Pro Durable Kevlar-reinforced flat cables with strain relief
J4 cables are reinforced with kevlar to resist breakage. The flat design helps prevent kinks, as the cable coils rather than twisting or bunching. Also, tough and flexible reinforced exoskeletons protect the cable connections and joints.
Pro Heavy-duty aluminum housing
JBuds J4 components are protected by rigid aluminum cylinders, capped with aluminum grills.
Pro Detailed sounding highs with punchy bass
Overall sound is quite bassy, with low end that is very punchy and fast, so it does not muddy up the music. The mids are slightly recessed, though the vocals can still be quite clearly heard as the bass does not overpower it. Highs on the other hand sound pretty good as they are clear and detailed without getting harsh.
Pro A good number of accessories are bundled
With the J4, you get an EVA foam carrying case for even more protection and convenience when bringing these on the go. Also, there are two sets of silicone ear tips: 3 pairs of single flange tips as well as 3 pairs of double flange tips. A shirt clip is also included.
Pro Rich, full sound
Bass is emphasized so there is a good bit of thump while staying controlled. Mids are rich, highs avoid sibilance, though they're a bit rolled off.
Soundstage is okay--instruments are separated out enough for them to not sound like they're all coming from the same place, but it's not particularly wide.
Pro Fantastic sound isolation to block out unwanted noise
The memory foam eartips mold to your ear to provide amazing sound isolation, though there's a bit of a learning curve to using them. You have to press them together before putting them in and then allow them to expand in your ear. Once expanded they will take the shape of your ear and that way provide excellent noise isolation.
The earphones also come with silicon tips which are easier to use than the foam ones and also last longer.
Pro Comfortable once you get used to them
The SE215 earphones have a negative profile, optimized nozzle angle, over-ear fit and memory eartips that ensure the earphones stay in place comfortably regardless of situation. You can even lie on your side with them.
Pro A lot of equipment
6 types of plugs (silicon/ foam: S/M/L).
Pro Outstanding build quality makes them long lasting
SE215 earbuds use tough plastic earpiece shells, have a robust kevlar-reinforced cable, a sturdy Y-splitter that's difficult to bend and an L-shaped plug that adds additional strain relief. They won't break if you snag them, drop them or sit on them. They're also completely sweat proof so you can use them while working out without having to worry about damaging them. They're durable enough for professional stage use for which they were specifically designed for.
Pro Thick, replaceable cable
The SE215's 6.4-ft. cable is very thick, and further reinforced at the left/right split point. Reviews confirm the durability benefits of its heavy-duty design. If it ever does break, the cable is built to detach safely from the earpieces, allowing replacement.
Pro Will stay in place in the ears
The optimized angle of the earbuds, over-ear fit, and memory ear tips ensure that the earphones stay in place comfortably regardless of situation. These are also sweat-proof, so they're a great option for active use.
Pro Two year limited warranty
Shure provides a warranty against defects in materials or manufacturing for two years.
Con Heavy wires generate noise
The J4's thick cables carry sound like a stethoscope, including the sound of the cables themselves moving and rubbing against things. This can be particularly bad while walking or running.
Con Significant defect rate
Although the J4s are built to be durable, many users report them breaking down after 1-3 months of light use.
Con No volume control
The J4s come with a mic and control switch, but no built-in volume control.
Con Need some time getting used to
It may take some getting used to memory cables and there's a bit of a learning curve to putting the earphones in with memory eartips. At, first memory cables may seem a bit stiff, but after they're broken in, they're generally more comfortable than typical wires. There's even a wire sleeve that helps form the wire bundled with the earphones to help combat this issue. As for memory eartips--every time before putting them in your ear you have to press them together and then allow them to expand in your ear.
Con Inline mic and volume controls cost an extra $50
The supplied detachable cable does not have a mic or inline volume controls. They can be added by upgrading to the M+ cable.