If you want long battery life and a familiar on-ear fit, choose JBL Tune 510BT; if you need open-ear listening that keeps your ears uncovered, choose Sudio B2. For glasses wearers, the key choice is whether you prefer padded ear cups around your ears or a lightweight band that leaves them open.
These are very different kinds of wireless headphones, not two versions of the same design. The JBL prioritizes extended listening and device switching; the Sudio prioritizes awareness of your surroundings and a light fit for movement.
• JBL Tune 510BT: On-ear headphones with up to 40 hours of battery life, USB-C charging, and the ability to switch between two Bluetooth devices. The trade-off: the ear cushions sit over your ears, and the headphones have no noise control.
• Sudio B2: Lightweight, open-ear bone-conduction headphones with IPX5 water resistance and a design intended to leave your ears free. The trade-off: up to 7.5 hours of playtime at 50% volume is far less than the JBL’s stated maximum.
• For glasses wearers: The Sudio’s open-ear design avoids placing ear cups over glasses, while the JBL’s adjustable headband and soft ear cushions offer a conventional padded fit.
• Choose JBL for longer listening sessions, calls, and switching between a phone and another Bluetooth device; choose Sudio for outdoor movement and listening while staying more aware of nearby sounds.
The JBL Tune 510BT is the more conventional choice: a pair of Bluetooth on-ear headphones with soft ear cushions, a padded, adjustable headband, and a foldable design. JBL lists up to 40 hours of battery life, with a full recharge taking about two hours over USB-C. A five-minute charge is specified to provide up to two more hours of listening.
How We Research
Updated: 2026-10-17 · 6 min read · Independent comparison
That combination suits someone who wants headphones for a commute, workday, or long stretch of music without making frequent charging part of the routine. The JBL can connect to two Bluetooth devices and switch between them, which is useful if you move from a video on a tablet to a call on your phone. Its on-ear microphone and button controls also support hands-free calls and voice-assistant access.
For glasses wearers, the JBL may work if padded ear cushions and an adjustable headband are the kind of fit you prefer. But the cups do sit on the ears, so they are not an open-ear solution. I would skip this model if your main priority is keeping your ears uncovered, or if you want water resistance: the listed product information specifies no noise control and does not provide a water-resistance rating. The fit is personal, too. Adjustable length helps, but it does not make an on-ear design the right match for everyone.
The Sudio B2 takes a different approach. Its open-ear, bone-conduction design is intended to deliver sound through the temples of the head while leaving the ears uncovered. The band sits around the head, and the listed weight is 29 grams. That makes it a candidate for people who want to listen while cycling, doing yoga, walking, or commuting without sealing or covering their ears.
That open format is especially relevant if you are comparing ear clip headphones for glasses wearers. The B2 is not described as an ear-clip model; it uses a band and bone-conduction design instead. Because it does not place padded cups over the ears, it avoids that particular glasses-and-ear-cushion overlap. The product information also specifies IPX5 water resistance, Bluetooth 5.3, button controls, and up to 7.5 hours of playtime at 50% volume. A full charge is listed at about 1.5 hours.
Side-by-Side: Which Should You Choose?
• Best for longer battery life → JBL Tune 510BT. Its stated maximum is up to 40 hours, compared with up to 7.5 hours for the Sudio B2 at 50% volume.
• Best for keeping your ears uncovered → Sudio B2. Its open-ear bone-conduction design is made to leave the ears free; the JBL’s cushions sit over them.
• Best for switching between two devices → JBL Tune 510BT. It can switch between two Bluetooth devices, such as a tablet and phone.
• Best for movement and environmental awareness → Sudio B2. Its design is aimed at active use and keeping the ears open, which suits a walk or workout better than a conventional on-ear fit if awareness is a priority.
• Best for water resistance → Sudio B2. It has an IPX5 rating; the JBL’s listed information does not specify a water-resistance rating.
• Best for hands-free calls and voice-assistant access → JBL Tune 510BT. It has a microphone on the ear cup, call controls, and a button for accessing Siri or Google Assistant.
• Best fit to consider if you wear glasses → Sudio B2 for avoiding ear-cup overlap; JBL Tune 510BT if you prefer padded on-ear headphones. The right choice depends on whether an open band or cushions around the ears feel more comfortable to you.
• Best for quick top-ups → JBL Tune 510BT. Its listed five-minute charge provides up to two hours of listening; the Sudio lists a 1.5-hour full charging time but no equivalent quick-charge figure.
I would choose the Sudio B2 for glasses wearers who want an open-ear fit, outdoor awareness, and stated water resistance. Its shorter battery life is the clear compromise, so I would not pick it for all-day listening without charging. If long playtime, calls, and switching between devices matter more, I would choose the JBL Tune 510BT instead. For my glasses-wearing use case, though, the Sudio’s open-ear design is the deciding point.
The Sudio B2 leaves the ears uncovered, so it avoids placing ear cups over glasses. The JBL uses on-ear cushions and an adjustable headband; that conventional fit may suit some glasses wearers, but it does not avoid contact around the ears.
The JBL lists up to 40 hours of battery life. The Sudio lists up to 7.5 hours at 50% volume, so its stated listening time is considerably shorter.
Its open-ear design is intended to keep your ears uncovered and support awareness of your surroundings. Neither product lists noise control, and the Sudio is not designed as a sound-blocking option.
The Sudio B2 has an IPX5 water-resistance rating, and the product information describes it as splashproof. That rating does not establish that it is suitable for swimming or submersion.
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