Optoma NuForce BE Sport4 Review

If I were looking for workout headphones without stepping up to bulky over-ear gear, the Optoma NuForce BE Sport4 is the kind of compact option I’d put on the shortlist. My read of it is straightforward: this is a very light, sports-oriented headphone from Optoma for people who want something small enough for training, commuting, and daily carry without managing a full-size headset.

Why I’d consider the Optoma NuForce BE Sport4 for active use

The main appeal here is portability. At 0.03 pounds, or 0.48 ounces, the BE Sport4 sits firmly in the lightweight category. For gym bags, jacket pockets, and travel pouches, that matters more than it might seem. I’d rather take something this small to a workout than deal with large earcups, especially if the goal is movement rather than desk listening.

The format also makes sense if you do not want true-wireless earbuds. Fully separate earbuds are cleaner in one way because there is no cable between them, but they also give you two tiny pieces to keep track of. I can see the BE Sport4 appealing to someone who wants compact earphones while still avoiding the “where did the other bud go?” problem.

What the listed BE Sport4 specs tell me

• Size: 22.8 x 0.71 x 1.16 inches, so I’d think of it as long and slim rather than bulky.
• Weight: 0.03 pounds, or 0.48 ounces, which is the standout number for everyday carry.
• Battery: it uses 1 lithium ion battery, included, so charging is part of owning it.
• Model: the listed item model number is BESPORT4-BLACK.
• Manufacturer: Optoma is listed as the manufacturer.
• Availability: it first became available on June 24, 2018.

The limitation I’d flag immediately is the battery requirement. If you want a no-maintenance wired pair that is always ready as long as your source supports it, this is not that. I’d also be realistic about the form factor: a compact sports headphone is not a substitute for a large closed-back headphone if your priority is big physical coverage or a cushioned over-ear fit.

Who I’d point toward the BESPORT4-BLACK, and who should skip it

I’d point the Optoma NuForce BE Sport4 toward buyers who value low weight, simple portability, and a sports-friendly shape more than a full-size headphone build. It makes the most sense for people who want something easy to carry for workouts or commuting and who are comfortable keeping a rechargeable headphone topped up.

I’d skip it if you specifically want maximum isolation from an over-ear design, a larger desk-focused headphone, or a wired option with no battery to manage. Before ordering, I’d also check that this style of compact sports headphone matches how you actually plan to carry and use it, because that is where the BE Sport4’s spec sheet makes its strongest case.