Short answer: the Dockin D Fine+ 2. It ranks #25 of 75 large speakers at $150; the Sony ULT Field 5 ranks #40 and costs $198, so there is not much of a tradeoff to weigh.
What the Dockin D Fine+ 2 gets right: Quite deep bass for the category. The tradeoff: Not as much midrange clarity as other top ranked speakers.
On the Sony ULT Field 5 side: IP67 rated, dustproof and water resistant. The tradeoff: Bass not as deep as others in the category, and sound quality overall is just okay.
Buy the Dockin D Fine+ 2 if the ranking matters more than the price. Buy the Sony ULT Field 5 if the price matters more than the ranking.
Specifications Side By Side
| Dockin D Fine+ 2 | Sony ULT Field 5 | |
|---|---|---|
| Price | $150 | $198 |
| Ranked | #25 of 75 in Large Size Portable Bluetooth Speakers | #40 of 75 in Large Size Portable Bluetooth Speakers |
| Bass Extension (-10dB) | 45Hz | - |
| Battery Life | 16 hours (Manufacturer specified) | 25 hours (Manufacturer specified) |
| EQ | Yes (Bass boost 3 steps) | Yes (App + ULT button) |
| IP Rating | IPX5 | IP67 |
| Max Volume | 96dB | - |
| Power Bank | Yes | Yes |
| Power Input | USB-C | USB-C |
| TWS | Yes | Yes |
| Weight | 5.1 lbs / 2.3 kg | 7.3 lbs / 3.3 kg |
| App | No | Yes |
| Aux Input | Yes | Yes |
| Bluetooth Codecs | SBC | SBC, AAC, LDAC |
| Built in Microphone | Yes | Yes |
| Party Mode | No | Yes (Party Connect up to 100 speakers) |
| Stereo | Yes | Yes |
| Bluetooth Version | 5.0 | 5.3 |
| Dimensions | 12.2" x 4.1" x 4.1" (310 x 103 x 103 mm) | 12.6" x 5.67" x 4.92" (320 x 144 x 125 mm) |
| Drivers | 2x tweeters, 2x midrange/bass drivers + 2x passive radiators | 2x 46mm tweeters + 1x 79mm x 107mm woofer |
| Output Power | 50W | 27W |
The Two Speakers In Full
Dockin D Fine+ 2: $150 Amazon
Pros: Quite deep bass for the category.
Cons: Not as much midrange clarity as other top ranked speakers. Dip at 1.8khz.
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 45Hz |
| Battery Life | 16 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.0 |
| Built in Microphone | Yes |
| Dimensions | 12.2" x 4.1" x 4.1" (310 x 103 x 103 mm) |
| Drivers | 2x tweeters, 2x midrange/bass drivers + 2x passive radiators |
| EQ | Yes (Bass boost 3 steps) |
| IP Rating | IPX5 |
| Max Volume | 96dB |
| Output Power | 50W |
| Party Mode | No |
| Power Bank | Yes |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 5.1 lbs / 2.3 kg |
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: Dockin D Fine+ 2 vs Soundcore Motion Boom 50w vs 30w 😱
- Alan Ross Reviews: Dockin d fine plus 2 v w king d8 budget boombox - 2020 50 watt speakers
- Alan Ross Reviews: Dockin D Fine+ 2 - overview - specs - sound test
- Alan Ross Reviews: Dockin d fine+ mk2 stereo test - two Dockin Speakers - wow!
- Alan Ross Reviews: Sony xb43 JBL Xtreme 2 W-King d8 Dockin D Fine
- Head-to-Head Comparisons
- 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
- Sony ULT Field 5 vs JBL Xtreme 4
- Sony ULT Field 5 vs Soundcore Boom 2
- Sony ULT Field 5 vs JBL Xtreme 5
- Sony ULT Field 5 vs Marshall Stockwell 2
- Sony ULT Field 5 vs Mee audio PartySPKR
- Sony ULT Field 5 vs Sony SRS-XG300
- Sony ULT Field 5 vs Teufel Rockster Cross
- Sony ULT Field 5 vs Ultimate Ears Everboom
- Sony ULT Field 5 vs Bogasing S8 Pro
- Sony ULT Field 5 vs LG PN7
- Sony ULT Field 5 vs Marshall Middleton
- Sony ULT Field 5 vs Sony SRS-XB43
- Sony ULT Field 5 vs Soundcore Motion X600
- Sony ULT Field 5 vs Ultimate Ears Epicboom
- Sony ULT Field 5 vs Bose SoundLink Plus
- Sony ULT Field 5 vs Harman Kardon Citation 200
- Sony ULT Field 5 vs JBL Xtreme 3
- Sony ULT Field 5 vs Klipsch Detroit
- Sony ULT Field 5 vs Marshall Kilburn II
- Sony ULT Field 5 vs Mifa WildCamping
- Sony ULT Field 5 vs Minirig mk2 with subwoofer
- Sony ULT Field 5 vs Minirig mk3 with subwoofer
- Sony ULT Field 5 vs Minirig mk4 with subwoofer
- Sony ULT Field 5 vs Treblab HD-Max
- Links
As an Amazon Associate I earn from qualifying purchases.
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.