How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-18 · 6 min read · Independent comparison
• TOZO T21 — biggest strength: A huge battery story plus real customization. The case carries a 500mAh cell that tops the buds up over and over, and the TOZO app hands you 32 EQ presets to shape the sound.
• TOZO T21 — biggest trade-off: It's the bulkier, more involved option. The case is on the heavier side, and the app-based tuning means there's a setup step before you get the sound you want.
• Skullcandy Smokin Buds 360 — biggest strength: Simplicity and lightweight comfort. Small buds, three ear gel sizes, multipoint pairing, and a 10-minute charge that buys you real listening time.
• Skullcandy Smokin Buds 360 — biggest trade-off: Much shorter total battery life and a lighter IPX4 water rating, so it's less suited to long trips or heavy sweat sessions.
• Who each is for: TOZO T21 for the tinkerer and the all-day listener; Skullcandy Smokin Buds 360 for the commuter and student who wants to grab, go, and not think about it.
The T21 is built around endurance. Each earbud holds a 45mAh battery rated for up to 10 hours of continuous play, and the 500mAh case adds roughly four more full charges — TOZO lists an eye-catching total of up to 88 hours of listening on a full case. There's a second figure in the spec sheet quoting up to 44 hours, which likely reflects a different listening/volume condition, but either way this is a pair you charge rarely, not nightly. A 2-hour charge time and wireless charging support round out the convenience.
Sound hardware is a 14.2mm dynamic driver, which is large for an in-ear bud and points to a fuller low end and a wider sense of space than the tiny drivers you find in budget pairs. The app is where the T21 really separates itself: 32 preset equalizers, white-noise options, personal sound adjustments, and a sharing community where users swap their own EQ curves. If you like fiddling until a track sounds exactly right, that's a genuine feature, not filler.
The practical stuff is solid too. Bluetooth 5.3 with a 10-meter range, automatic reconnect when you open the case, one-step pairing, and compatibility across iOS, Android, and Windows. Dual-mic call noise cancelling handles voice, and the IPX8 rating with a sealed-cavity design is the strongest water protection in this comparison — rain, sweat, and splashes aren't a concern. There's no active noise cancellation here, just a semi-in-ear fit that sits securely without burrowing into your canal.
Buy the T21 if you want maximum playtime, wireless charging, an app to tune your sound, and you don't mind a slightly larger case in your pocket. Skip it if you want the absolute lightest possible buds or you'd rather never open an app for anything.
Skullcandy went the opposite direction: strip it down and make it painless. Total battery is listed at up to 20 hours — 7 hours in the buds plus 13 more in the case — which is a fraction of the T21's figure, but the Rapid Charge feature is the clever bit: a 10-minute top-up gets you about 1.75 hours of listening. That's a genuinely useful number when you're running out the door and realize the buds are dead.
The buds themselves are light (the product weight is listed at 45g for the set), and the fit story is thoughtful: three ear gel sizes included, plus a noise-isolating design that blocks ambient sound passively rather than electronically. Skullcandy calls the shape a pea-shaped, bud-style fit, and the enclosure mixes plastic and silicone for a soft, low-profile feel. For small ears or anyone who finds big in-ears uncomfortable, that matters more than any spec.
Multipoint pairing is the standout feature — connect to two devices at once and switch between them, which is great if you're flipping between a laptop and a phone during the day. Bluetooth 5.3 keeps the connection current, and controls are touch-based. Water protection is IPX4, meaning sweat and light splashes are handled but not submersion. Impedance is 16 ohm, which makes these easy to drive from just about any phone.
Buy the Smokin Buds 360 if you want light, comfortable buds, multipoint switching, and a quick-charge safety net for commuting or studying. Skip it if you need all-day battery, wireless charging, or serious water resistance, because those aren't on the menu here.
• Best for battery life → TOZO T21. Up to 88 hours total versus 20 hours. Not close.
• Best for fast top-ups → Skullcandy Smokin Buds 360. A 10-minute charge for roughly 1.75 hours is quicker insurance than the T21's 2-hour full charge cycle.
• Best for sound customization → TOZO T21. 32 EQ presets, white noise, and a user EQ community are simply not offered by the Skullcandy.
• Best for comfort and small ears → Skullcandy Smokin Buds 360. Lightweight buds, three ear gel sizes, and a low-profile bud shape.
• Best for two-device juggling → Skullcandy Smokin Buds 360. Multipoint pairing is the deciding feature if you live between a laptop and a phone.
• Best for workouts and wet weather → TOZO T21. IPX8 versus IPX4 is a real gap when sweat and rain are involved.
• Best for charging convenience → TOZO T21. Wireless charging on the case is a small daily luxury the Skullcandy doesn't have.
• Best for set-it-and-forget-it simplicity → Skullcandy Smokin Buds 360. No app, no fuss, just pair and play.
In my opinion, the TOZO T21 is the better buy for most people, and it's the one I'd pick. The battery advantage is enormous, the 14.2mm drivers and 32-preset app give you room to actually shape the sound, and IPX8 means you can take them anywhere without worrying. The Skullcandy Smokin Buds 360 is the smarter choice only if lightweight comfort and multipoint matter more to you than longevity — and for a student or commuter, that's a legitimate case. Check the current price on Amazon before you commit, since that's the one variable that can flip this call.
For battery life, water resistance, and sound customization, yes — the T21 wins clearly on all three. The Smokin Buds 360 wins on weight, multipoint pairing, and rapid charging. It comes down to which of those matters more in your daily routine.
TOZO rates the T21 at up to 10 hours per bud with roughly 44 to 88 hours total including the case, depending on the condition. Skullcandy rates the Smokin Buds 360 at 7 hours per bud plus 13 in the case, for about 20 hours total.
The TOZO T21 carries an IPX8 rating with a sealed cavity, so rain, sweat, and splashes are fine. The Skullcandy Smokin Buds 360 is IPX4, which handles sweat and light spray but not heavy exposure or submersion.
The Skullcandy Smokin Buds 360 is the lighter, lower-profile option and ships with three ear gel sizes, so it's the easier fit for smaller ears. The TOZO T21 uses a semi-in-ear design that sits securely but is a bit more substantial.
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