in 5 offers
The lowest price for Ultimate Ears Wonderboom 4 Bluetooth Speaker right now is $113.90 at Kmart, compared across 5 retailers.
The all-time low was $98.00 on 31 Aug 2026 — today's price is 16% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 12 Oct 2026.
Ultimate Ears Wonderboom 4 Bluetooth Speaker
Last updated at 12/10/2026 23:50:28
Ultimate Ears WONDERBOOM 4 Portable Waterproof Bluetooth Speaker with Big Bass and 360-Degree Sound, Dustproof Floating Speaker with 131ft (40m) Range
Free delivery
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Ultimate Ears Wonderboom 4 Black
30-day returns
Ultimate Ears Wonderboom 4 Bluetooth Speaker in Enchanting Purple
Free delivery
Ultimate Ears Wonderboom 4 Lilac
Free delivery between 14–23 Oct
Ultimate Ears Wonderboom 4 Portable Bluetooth Speaker - Enchanting Lilac
Free next-day delivery
| Outdoor | Yes |
| Frequency Response | Balanced frequency response in the mid-range |
| Bluetooth | Yes |
| Connectivity Technology | Wireless, Bluetooth |
| Ports and Interfaces | USB-C |
Ultimate Ears WONDERBOOM 4 Portable Waterproof Bluetooth Speaker with Big Bass and 360-Degree Sound, Dustproof Floating Speaker with 131ft (40m) Range
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Ultimate Ears Wonderboom 4 Black
30-day returns
Ultimate Ears Wonderboom 4 Bluetooth Speaker in Enchanting Purple
Free delivery
Ultimate Ears Wonderboom 4 Lilac
Free delivery between 14–23 Oct
Ultimate Ears Wonderboom 4 Portable Bluetooth Speaker - Enchanting Lilac
Free next-day delivery
| Outdoor | Yes |
| Frequency Response | Balanced frequency response in the mid-range |
| Bluetooth | Yes |
| Connectivity Technology | Wireless, Bluetooth |
| Ports and Interfaces | USB-C |
