1 / 7Soundcore Boom 3i D5100 50W Portable Speaker
D5100: Soundcore Boom 3i is a portable Bluetooth speaker listed with 50 watts of maximum output, waterproof protection and a 16-hour battery-life claim. Its outdoor-focused features suit poolside and beach use, though customer feedback is mixed on battery life and durability.
At a glance
- The listing advertises a 50-watt maximum output and bass response down to 56 hertz.
- Waterproof and dustproof protection is listed, with the feature copy specifically claiming IP68.
- The manufacturer describes floating playback and app controls, alongside an advertised 16-hour playtime.
- Voice amplifier, emergency alarm, Buzz Clean and a detachable strap are mentioned in the feature copy.
Reference price: $189.99
Price checked: Nov 13, 2026
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Pros and cons
Pros
- Outdoor-oriented waterproof and dustproof claims are relevant for pool and beach listening.
- Bluetooth connection and app control are listed, with buttons also specified for control.
- The compact listed dimensions and 1.07 kg weight support carrying it between locations.
Cons
- Battery life is a trade-off to weigh carefully because customer feedback is mixed despite the listed 16-hour claim.
Technical specifications
27 specifications| Brand | Soundcore |
|---|---|
| Model | D5100 |
| Speaker type | Outdoor |
| Colour | Green |
| Maximum output power | 50 watts |
|---|---|
| Frequency response | 56 hertz |
| Audio output mode | Stereo |
| Audio channels | 2 |
| Audio encoding | Advanced Audio Coding (AAC) |
| Driver type | Dynamic Driver |
| Impedance | 4 ohm |
| Wireless connection listed | Bluetooth |
|---|---|
| Control methods listed | App |
| Bluetooth range | 100 meters |
| Compatible devices | Desktop, Laptop, MP3 Player, Projector, Smartphone, Tablet, Television |
| Power configuration | Battery Powered |
|---|---|
| Battery life listed | 16 hours |
| Battery capacity | 2400 milliamp_hours |
| Battery charge time | 3.18 hours |
| Batteries required | 1 C batteries required. |
| Enclosure material | Plastic |
|---|---|
| Water resistance listed | Waterproof |
| Additional features | Bass Boost, Dustproof, LED Light, Stereo Pairing, Waterproof |
| Mounting types listed | Floor Standing |
|---|---|
| Dimensions listed | 7.85 x 21 x 8.5 cm; 1.07 kg |
| Weight listed | 1.07 kg |
| Speaker size | 8.27 inches |
What to know before buying
Listing details to confirm
The listing's protection details differ in specificity: the technical field says “Waterproof” while feature copy claims IP68 waterproof and dustproof. Battery life is listed as 16 hours, but customer views on battery life and durability are mixed. The listed 1 C battery requirement also appears alongside a rechargeable capacity and charge-time claim, so the power configuration is unclear.
Who is it for?
A good fit for
- Outdoor listening where listed water and dust protection is useful.
- Buyers wanting a portable Bluetooth speaker with app and button controls.
- Listeners who prioritize a listed 50-watt output and bass-focused features.
Less suited to
- Buyers who need dependable battery endurance without uncertainty from mixed customer feedback.
- Anyone requiring a clearly confirmed power and battery configuration before purchase.
Customer reviews on Amazon
- 5 stars
79% 79% - 4 stars
10% 10% - 3 stars
6% 6% - 2 stars
1% 1% - 1 star
4% 4%
Customer feedback highlights sound quality, bass, volume, connectivity and portability as strengths. Battery life and durability draw mixed responses. That matters for outdoor buyers relying on the listed 16-hour playtime and protective claims, which remain product claims rather than proof of how a particular unit performs.
Positive themes
- Customers praise sound quality and bass, and report satisfaction with volume and connectivity.
- Portability is a reported strength.
Mixed feedback
- Customer views on battery life are mixed despite the listed 16-hour claim.
- Customer views on durability are mixed.
Frequently asked questions
Is the Soundcore Boom 3i listed as waterproof?
Yes. Its specifications say “Waterproof,” and the feature copy claims IP68 waterproof and dustproof protection. Treat IP68 as a manufacturer listing claim rather than an independently verified rating.
How long does the Boom 3i battery last?
The listing states 16 hours, but customer feedback is mixed about battery life. The source also lists a 2400 milliamp_hours capacity, 3.18 hours to charge and a requirement for 1 C batteries, so confirm the power details if they matter to your purchase.
Can it float while playing audio?
The feature copy claims floating playback and says the speaker stays upright in waves. This is a manufacturer claim, not a verified performance result.
What controls and connections are listed?
Bluetooth is the listed wireless connection. App and button controls are specified.
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