Review: Bigtruely S3 Wireless Earbuds - Comfortable Bluetooth Earbuds for Sports

Published on May 9, 2023, 9:04 p.m.

The Bigtruely S3 Wireless Earbuds are a great choice for those looking for affordable Bluetooth earbuds to use for sports and workouts. With a comfortable around-the-neck design, 12-hour battery life, and IPX7 waterproof rating, these earbuds check a lot of boxes for an active lifestyle. In this review, we’ll take a close look at the features, sound quality, comfort, and overall value of the Bigtruely S3 earbuds.
 Bigtruely S3 Wireless Earbuds


  • Brand: Bigtruely
  • Model Name: S3
  • Color: Black
  • Form Factor: In-ear with neckband
  • Connectivity: Bluetooth 5.3
  • Battery Life: 12 hours (80 hours standby)
  • Waterproof Rating: IPX7

Key Features

  • Easy Bluetooth pairing: The S3 earbuds quickly pair to your device via Bluetooth 5.3. You can connect to two devices simultaneously.

  • 12-hour battery life: A full charge gives you up to 12 hours of playtime, perfect for long gym sessions or workdays.

  • IPX7 waterproof: Thanks to the IPX7 waterproof rating, you don’t have to worry about sweat or rain damaging the earbuds.

  • Magnetic earbuds: The earbuds magnetically snap together around your neck when not in use, preventing tangles and dropouts.

  • Comfortable fit: Three sizes of silicone ear tips and a flexible neckband ensure a customizable, comfortable fit.

Sound Quality

With 10mm drivers, the S3 earbuds deliver decent sound with emphasis on the low end. The bass has a noticeable thump, making these suitable for pop, hip-hop, and workout playlists. Mids and highs are slightly recessed but clear. Overall, the sound is enjoyable for everyday listening and workouts, especially at this affordable price point. Phone calls also come through loud and clear thanks to the built-in microphones.
 Bigtruely S3 Wireless Earbuds

Design and Comfort

The S3 has an understated all-black design that looks subtle yet sporty. The flexible silicone neckband is soft and lightweight, allowing it to sit comfortably around your neck. The earbuds themselves are fairly small and light.

Finding the right fit takes some experimenting with the three sizes of ear tips. Once you get a good seal, the S3 earbuds are comfortable enough for long-term wear. The angled nozzles also ensure a secure fit. The magnetic earbuds are handy for keeping everything tangle-free when not using them.

Battery Life and Connectivity

Battery life is one of the highlights of the S3 earbuds. You get approximately 12 hours of continuous playback on a full 1.5 hour charge. That’s long enough to last through several workouts or a full workday. The Bluetooth 5.3 connection is quick to pair and maintains a stable connection to your device.

One downside is the audible low battery warning that starts at 20% charge. While handy, it can be annoying if it happens frequently. Overall though, battery life is impressive for budget wireless earbuds.

 Bigtruely S3 Wireless Earbuds

Noise Cancellation

The S3 earbuds feature CVC 8.0 noise cancelling technology on the microphones to reduce ambient sounds during calls. While they don’t have active noise cancellation for listening to music, the in-ear fit helps block out some external noise passively.

 Bigtruely S3 Wireless Earbuds

Use Cases

The Bigtruely S3 earbuds are ideal for:
- Workouts - The waterproof design makes them perfect for intense training.
- Running - The lightweight fit won’t bounce around while running.
- Gym - With 12 hours of battery, they’ll last through long workout sessions.
- Outdoor activities - Thanks to the IPX7 rating, you don’t have to worry about sweat or rain.

User Feedback Analysis

The Bigtruely S3 earbuds have received largely positive feedback from users. Here is a breakdown of the most common pros and cons mentioned:


  • Great value for money - Many reviews mention these earbuds punch above their weight given the affordable price point. The overall features and performance exceed expectations.

  • Impressive battery life - The 12 hours of continuous playback on a single charge impresses users based on the price. This long battery life is a major highlight.

  • Comfortable and secure fit - Once finding the right eartip size, most users report the S3 earbuds are comfortable and stay put during intense workouts. The angled design helps keep them in place.

  • Good sound for the price - While lacking some richness, users are pleasantly surprised by the sound quality from such inexpensive earbuds. The bass reproduction receives praise in particular.


  • Occasional connectivity issues - A common complaint is sporadic cutting out or skipping that can happen when connected to some devices. The Bluetooth 5.3 connection is not as stable as more expensive options.

  • Eartips can take time to fit right - It may require swapping the included eartips several times to find the optimal fit for your ears. Getting a proper seal is important to maximize comfort and sound.

  • Low battery warnings can be annoying - The audible tone when the battery drops to 20% is helpful but can become irritating with frequent low battery.

 Bigtruely S3 Wireless Earbuds


For under $25, the Bigtruely S3 Wireless Earbuds deliver great value. The sports-friendly design, lengthy battery life, and waterproofing make them a versatile option for active lifestyles. While audiophiles may want more refinement, the sound quality is pleasing for everyday use. If you’re seeking affordable Bluetooth earbuds that can keep up with your workouts, the S3 earbuds deserve a close look.

 Bigtruely S3 Wireless Earbuds


  • Driver: 10mm dynamic driver
  • Frequency response range: 20Hz - 20kHz
  • Bluetooth version: 5.3
  • Wireless range: Up to 10m (33 feet)
  • Battery capacity: 40mAh (earbuds), 300mAh (charging case)
  • Battery life: Up to 12 hours (earbuds), 80 hours (charging case)
  • Charging time: 1.5 hours (earbuds), 2 hours (charging case)
  • Waterproof rating: IPX7
  • Weight: 22g (0.78oz) for earbuds, 60g (2.1oz) for case
  • Microphone: CVC 8.0 for noise cancellation
  • Eartip sizes: 3 sizes (small, medium, large)
  • Materials: ABS plastic housing, silicone eartips, silicone neckband
  • Included accessories: USB-C charging cable, 3 sizes of eartips, user manual
  • Compatibility: Devices with Bluetooth capability
  • Warranty: 12 months

Box Contents

  • Bigtruely S3 earbuds
  • 3 sizes of silicone eartips
  • USB-C charging cable
  • User manual

How to Use

To use the S3 earbuds:
1. Charge the earbuds fully before first use.
2. Pair the earbuds by taking them out of the case near your device and find ‘Bigtruely S3’ in your Bluetooth settings to connect.
3. Insert the earbuds and adjust until you achieve a comfortable and secure fit.
4. Control your music, calls, and volume directly from the touch controls on the earbuds.
5. Return them to the case for storage when not in use.

Bigtruely S3 Wireless Earbuds