Short answer: the Sony ULT Field 5 for the higher ranking, the Bogasing S8 Pro for the lower price. The Sony ULT Field 5 ranks #40 of 75 large speakers at $198. The Bogasing S8 Pro ranks #60 at $152, $46 cheaper.
On the Bogasing S8 Pro side: Use “vocal” mode for the flattest response, still not great. Set against that: Huge treble peaks in most sound modes, sounds sizzling and harsh.
The case for the Sony ULT Field 5: IP67 rated, dustproof and water resistant. Set against that: Bass not as deep as others in the category, and sound quality overall is just okay.
Buy the Bogasing S8 Pro if the price matters more than the ranking. Buy the Sony ULT Field 5 if the ranking matters more than the price.
Specifications Side By Side
| Bogasing S8 Pro | Sony ULT Field 5 | |
|---|---|---|
| Price | $152 | $198 |
| Ranked | #60 of 75 in Large Size Portable Bluetooth Speakers | #40 of 75 in Large Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Battery Life | 15 hours (Manufacturer specified) | 25 hours (Manufacturer specified) |
| IP Rating | IPX5 | IP67 |
| MicroSD Playback | Yes | - |
| Power Input | USB-C | USB-C |
| TWS | Yes | Yes |
| Weight | 3.4 lbs / 1.55 kg | 7.3 lbs / 3.3 kg |
| App | No | Yes |
| Bluetooth Codecs | SBC | SBC, AAC, LDAC |
| Built in Microphone | Yes | Yes |
| EQ | No | Yes (App + ULT button) |
| Party Mode | No | Yes (Party Connect up to 100 speakers) |
| Power Bank | No | Yes |
| Stereo | Yes | Yes |
| Bluetooth Version | 5.0 | 5.3 |
| Dimensions | 10.67" x 2.09" x 2.87" (271 x 53 x 73 mm) | 12.6" x 5.67" x 4.92" (320 x 144 x 125 mm) |
| Frequency Response | 48Hz - 20kHz (Manufacturer specified) | - |
| Output Power | 60W | 27W |
| Drivers | 60W: Dual drivers + passive radiator | 2x 46mm tweeters + 1x 79mm x 107mm woofer |
The Two Speakers In Full
Bogasing S8 Pro: $152 Amazon
Pros: Use “vocal” mode for the flattest response, still not great.
Cons: Huge treble peaks in most sound modes, sounds sizzling and harsh.
| App | No |
|---|---|
| Aux Input | Yes |
| Battery Life | 15 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.0 |
| Built in Microphone | Yes |
| Dimensions | 10.67" x 2.09" x 2.87" (271 x 53 x 73 mm) |
| Drivers | 60W: Dual drivers + passive radiator |
| EQ | No |
| Frequency Response | 48Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX5 |
| MicroSD Playback | Yes |
| Output Power | 60W |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 3.4 lbs / 1.55 kg |
- Reviews, Comparisons and Sound Samples
- Links
Sony ULT Field 5: $198 Amazon
Pros: IP67 rated, dustproof and water resistant. 25 hour battery life. App with 10-band EQ. Party Connect with up to 100 speakers. USB-C in/out for charging your phone.
Cons: Bass not as deep as others in the category, and sound quality overall is just okay. ULT button makes a really loud tone when pressed. Just an okay speaker.
| App | Yes |
|---|---|
| Aux Input | Yes |
| Battery Life | 25 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 5.3 |
| Built in Microphone | Yes |
| Dimensions | 12.6" x 5.67" x 4.92" (320 x 144 x 125 mm) |
| Drivers | 2x 46mm tweeters + 1x 79mm x 107mm woofer |
| EQ | Yes (App + ULT button) |
| IP Rating | IP67 |
| Output Power | 27W |
| Party Mode | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 7.3 lbs / 3.3 kg |
- Reviews, Comparisons and Sound Samples
- Danny Pops: Don’t TOUCH that ULT Button! Sony ULT Field 5 Review
- Mark Ellis Reviews: Sony just changed summer sound 🤨 | Sony ULT Field 5 & 3 Review
- Dominik Reviews: Sony ULT Field 5 vs JBL Xtreme 4 - Outdoor Sound Test - Sony shines or not?
- Joy & Oluv’Sone: Sony ULT Field 5 vs Anker SoundCore Boom 2 - listening test
- Head-to-Head Comparisons
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- Sony ULT Field 5 vs Bose SoundLink Plus
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- Sony ULT Field 5 vs Minirig mk2 with subwoofer
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- Links
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Product prices and availability were last checked August 9, 2026 at 6:57 AM UTC and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.