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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want marathon-grade battery life and a connection that reaches across the room, choose SANLIUJIU Over; if you need a smart touchscreen charging case with on-the-fly EQ tuning and newer Bluetooth, choose ZZU Earbuds. Both are IPX7 waterproof sport earbuds. The difference is what each one does around the workout.
• SANLIUJIU Over — biggest strength: a claimed 60 hours of total playtime (6 hours per charge, 48 more from the case), Bluetooth 5.3, touch controls and ENC mics.
• SANLIUJIU Over — biggest trade-off: no companion app, no EQ presets, and the specs emphasize endurance over sound customization.
• ZZU Earbuds — biggest strength: a multifunction touchscreen charging case that handles volume, track skipping, 5 EQ modes, earbud locating and calls without touching your phone.
• ZZU Earbuds — biggest trade-off: the data sheet gives no total playtime figure and no per-charge figure, so battery endurance is the one number you can't pin down.
• Who each is for: SANLIUJIU Over for long-distance runners, commuters and anyone who hates charging; ZZU Earbuds for tinkerers and gym-goers who want fingertip control and adjustable sound.
The headline spec here is stamina. SANLIUJIU Over claims 6 hours of playback per charge and up to 48 additional hours from the pocket-sized USB-C case — that's the 60-hour total. A 15-minute top-up reportedly buys you 2 hours, which matters more than it sounds: it's the difference between leaving the gym with dead buds and leaving with music for the ride home. The standby claim is even longer, so if you're the kind of person who throws earbuds in a bag and forgets them for weeks, this design is built for that habit.
The fit is the over-ear hook style, with flexible earhooks and soft silicone tips meant to lock in during running, cycling or lifting. ABS construction, 1.6 ounces total, 16-ohm impedance and a 10mm dynamic driver. Bluetooth 5.3 with a claimed 50-foot range — the widest in this comparison — plus ultra-low latency for video and calls. Dual ENC microphones handle voice pickup, and touch gestures cover play/pause, track skipping, volume and voice assistant.
Who should buy it: distance runners, cyclists, commuters and travelers who want the longest possible time between charges and don't want to fiddle with settings. Who should skip it: anyone who wants to shape the sound signature or control playback from the case. There's no app and no EQ here — you get the tuning the drivers were built with, and that's it.
ZZU's pitch is control. The charging case is itself a touchscreen: tap it to change songs, adjust volume, cycle through 5 EQ modes, locate a missing earbud or answer a call. That's a genuinely different interaction model. You can leave your phone in a locker or a jacket pocket and run the whole session from the case — useful in a gym where your hands are chalked, gloved or wet.
The audio hardware backs it up on paper: oversized 12mm dynamic drivers versus the 10mm unit in the SANLIUJIU, with 32-ohm impedance and a 105 sensitivity figure. Five EQ presets (Bass Boost, Rock, Pop and others) let you switch tuning on the fly. Bluetooth 5.4 with a claimed 33-foot range, interference resistance and latency of ≤60ms, which is a tighter latency number than most sport buds advertise. ENC handles call clarity, and controls extend beyond touch to push-button and voice, with app support listed.
Side-by-Side: Which Should You Choose?
• Best for battery life → SANLIUJIU Over. 60 hours total, 6 per charge, 15 minutes for 2 hours.
• Best for sound customization → ZZU Earbuds. 5 EQ modes, switchable from the case.
• Best for driver size → ZZU Earbuds. 12mm versus 10mm dynamic drivers.
• Best for Bluetooth range → SANLIUJIU Over. 50 feet versus 33 feet.
• Best for the newest Bluetooth standard → ZZU Earbuds. 5.4 versus 5.3.
• Best for lowest stated latency → ZZU Earbuds. ≤60ms.
• Best for hands-free control without your phone → ZZU Earbuds. The touchscreen case does what an app usually does.
• Best for set-it-and-forget-it simplicity → SANLIUJIU Over. No app, no presets, no case menus.
• Tie on water resistance → both. IPX7 on both, same rating class.
In my opinion, most people shopping for IPX7 sport earbuds should start with SANLIUJIU Over. The reason isn't sound — it's the 60-hour figure and the 50-foot range, which solve the two problems that actually ruin workouts: dead batteries and dropouts. The lack of an app is a real limitation, but for running and commuting it's a limitation you rarely notice. I'd pick ZZU Earbuds instead if I wanted to tune bass on the fly or control everything from the case, and I'd accept the unknown battery figure as the cost of that convenience. If price is the deciding factor for you, check the current price on Amazon for both before you commit.
are ipx7 earbuds waterproof
IPX7 is a water-resistance rating, not a claim of unlimited waterproofing. It means the device is rated to survive immersion in water under specified test conditions. Both the SANLIUJIU Over and ZZU Earbuds carry IPX7, so both are rated to handle sweat, rain, splashes and accidental dunks.
can you shower with ipx7 earbuds
IPX7 covers immersion, so a shower is within what the rating is designed to handle — but the rating applies to the earbuds, not necessarily the charging case. Keep the case dry, and remember that soap, shampoo and steam aren't part of the IPX7 test conditions. Treat the rating as protection against accidents, not an invitation.
On paper, SANLIUJIU Over — it states 6 hours per charge and up to 48 more from the case, with a 2-hour charge time. ZZU Earbuds lists only a 1.5-hour charge time and no playtime figure, so a direct comparison isn't possible from the specs.
Yes. ZZU lists compatibility with both iOS and Android, and control methods include app, push button, touch and voice. The touchscreen case functions independently of the phone, so EQ switching and track control work the same on either platform.
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See also: KOAIEZ IP7 vs Dohaeris IPX7: Ipx7 Waterproof Headphones, Yeabomy Clip vs USBERG Sports Earbuds IPX7: Touch Control, BNARQP NE49 vs JBMI Earbuds: Ipx5 Waterproof Headphones