We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-24 · 6 min read · Independent comparison
If you want one pair of sport earbuds that keeps going for days between charges and can even top up your phone in a pinch, choose hadbleng Earbuds Sport 128H; if you need a lighter, everyday true-wireless set with newer Bluetooth and a comfier all-day feel for calls and commuting, choose AT&T Comfort-Fit TWS.
• hadbleng Earbuds Sport 128H — biggest strength: a huge 2600 mAh charging case rated for up to a staggering 128 hours, plus a case that doubles as an emergency phone charger.
• hadbleng Earbuds Sport 128H — biggest trade-off: it's an over-ear hook design built for sport, so it looks and wears more like athletic gear than a discreet everyday bud.
• AT&T Comfort-Fit TWS — biggest strength: a light 4.2 g in-ear bud with Bluetooth 5.4, quad ENC mics for calls, and active noise cancellation.
• AT&T Comfort-Fit TWS — biggest trade-off: 35 hours total battery is modest next to the hadbleng, and IPX4 is a lighter water rating than IP7.
• Pick the hadbleng if marathon battery life, a secure earhook, and rugged water resistance matter most.
• Pick the AT&T if you want ultra-light comfort, the newest Bluetooth, and better call clarity in a compact in-ear shape.
The hadbleng Earbuds Sport 128H is built around one number: 128 hours. That's the figure tied to the 2600 mAh charging case, and it's the reason this pair stands out. Each bud delivers around 8 hours on its own, but the case keeps refilling them for roughly 120 hours of music playback, and a dual LED display shows both the case's remaining power and each bud's charging status, so you're never guessing whether you have juice left. A 2-hour charge tops things up, and it uses Type-C fast charging.
The other headline feature is the case itself. That same 2600 mAh battery can charge your phone, tablet, or other devices in an emergency, adding more than 30% to a phone when the case is full. For someone who's away from an outlet all day — a festival, a long hike, a travel day — that's genuinely useful. The buds themselves use 13 mm dual-layer graphene drivers with a bass-enhancement algorithm, and a hybrid ENC mic setup that the brand says passively cuts about 90% of background noise for calls.
So who should buy it? Runners, gym-goers, and outdoor types. The flexible earhooks and three sizes of silicone tips are designed to stay put during extreme activity, each bud weighs only 6 grams, and the IP7 waterproof rating handles splashes and rain with room to spare. It runs Bluetooth 5.3 with a 15-meter range and auto-pairs once you've connected the first time. Who should skip it? If you want a barely-there bud for office calls or you dislike the look of earhooks, this isn't the shape for you — and the over-ear style is a deliberate sport-first choice, not a neutral one.
The AT&T Comfort-Fit TWS takes the opposite approach: comfort and everyday usability first. Each earbud weighs just 4.2 grams — noticeably lighter than the hadbleng's 6 grams — and the soft silicone tips are designed to sit in your ear without causing fatigue over long sessions. The shape is a classic in-ear bud, which keeps things low-profile for commuting, the office, or a video call.
The spec sheet leans modern. Bluetooth 5.4 is the newer standard here, promising a stable connection and quick pairing, and it plays nicely with iPhone, Android, tablets, and Bluetooth laptops. For calls, four ENC microphones work to isolate your voice on Zoom or FaceTime even in noisy rooms, and the product listing also states active noise cancellation. Audio comes from 10 mm dynamic drivers with a Bass Boost mode for a punchy low end across music, podcasts, and calls.
Battery life is 8 hours per charge and 35 hours total with the USB-C "Power-Go" case, which has an LED display showing your exact battery percentage. The buds are IPX4-rated, meaning they resist sweat and light rain — fine for a gym session or a damp commute, but not the rugged rating the hadbleng carries. Controls are tap-based: skip tracks, answer calls, or summon your voice assistant, and the buds auto-pair when you open the case. The included kit covers a USB-C cable, the charging case, and a user guide.
Who should buy it? Anyone who values a light, unobtrusive in-ear fit for work, travel, and commuting, and who wants the newest Bluetooth plus stronger call hardware. Who should skip it? If you're a heavy outdoor athlete, need maximum battery endurance, or want a case that can rescue your phone, the hadbleng is the better fit.
• Best for battery life → hadbleng Earbuds Sport 128H. Up to 128 hours with the case versus 35 hours on the AT&T.
• Best for light, all-day comfort → AT&T Comfort-Fit TWS. 4.2 g per bud versus 6 g, with a low-profile in-ear shape.
• Best for calls in noisy places → AT&T Comfort-Fit TWS. Four ENC mics and active noise cancellation give it the edge here.
• Best for rugged sport and wet weather → hadbleng Earbuds Sport 128H. IP7 waterproof with secure earhooks beats IPX4 for hard workouts and rain.
• Best for the newest Bluetooth → AT&T Comfort-Fit TWS. Bluetooth 5.4 versus the hadbleng's 5.3.
• Best for travel emergencies → hadbleng Earbuds Sport 128H. Its 2600 mAh case can recharge your phone or tablet on the go.
• Best for bass-forward sound → hadbleng Earbuds Sport 128H. 13 mm graphene drivers with a dedicated bass algorithm; the AT&T counters with 10 mm drivers and Bass Boost.
• Best for a discreet everyday look → AT&T Comfort-Fit TWS. The bud shape stays subtle, while the hadbleng's earhooks read as athletic.
In my opinion, the hadbleng Earbuds Sport 128H is the pair I'd pick for anyone whose priority is endurance and durability — that 128-hour case, the IP7 rating, and the emergency phone-charging feature are hard to argue with for sport and travel. But if your days are built around calls, commutes, and long light-wearing sessions, I'd steer you to the AT&T Comfort-Fit TWS instead: Bluetooth 5.4, quad ENC mics, and a 4.2 g fit make it the more comfortable everyday companion. Match the pair to your routine and you'll be happy either way. Whatever you decide, check the current price on Amazon before you commit.
how to connect tws earbuds
Open the charging case and take the buds out — both of these auto-pair once you've done the first setup. On your phone, open Bluetooth settings, find the earbud name in the list, and tap it. After that first pairing, both the hadbleng and the AT&T reconnect automatically when the case is opened.
how to pair tws earbuds
Turn on Bluetooth on your device and make sure the buds are in pairing mode (usually by removing them from the case). Select the earbud name from the available devices. The hadbleng runs Bluetooth 5.3 and the AT&T runs Bluetooth 5.4, and both pair with phones, tablets, and Bluetooth laptops.
how to reset tws earbuds
A reset clears old pairings so you can connect to a new device cleanly. The exact button or touch sequence varies by model, so follow the included user guide for your specific pair. Both the hadbleng and the AT&T ship with a user manual in the box.
how to tws earbuds
"TWS" just means true wireless stereo — two independent buds with no cable between them. Put them in, pair once over Bluetooth, and use the touch controls to skip tracks, adjust volume, or take calls. The hadbleng adds earhooks and IP7 waterproofing, while the AT&T uses a lighter in-ear fit with tap controls.
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See also: hadbleng Earbuds 128hrs vs SRICH Earbuds: Earbuds with Long, MINDBEAST Open Ear Earbuds vs Hupoaf Earbuds Sport, JBL Live Pro 2 vs TALIX T30: TWS Earbuds