Short answer: the Sony ULT Field 3 for the higher ranking, the Sony ULT Field 1 for the lower price. The Sony ULT Field 3 ranks #57 of 134 medium speakers at $148. The Sony ULT Field 1 ranks #75 at $138, $10 cheaper.
The case for the Sony ULT Field 1: IP67 rated, survives drops and 1m submersion. Set against that: Upper midrange peak, rolled off treble.
What the Sony ULT Field 3 gets right: IP67 rated, dustproof and water resistant. The catch: Sounds a bit hollow, a bit boosted in the treble.
Buy the Sony ULT Field 1 if the price matters more than the ranking. Buy the Sony ULT Field 3 if the ranking matters more than the price.
Specifications Side By Side
| Sony ULT Field 1 | Sony ULT Field 3 | |
|---|---|---|
| Price | $138.00 | $148 |
| Ranked | #75 of 134 in Medium Size Portable Bluetooth Speakers | #57 of 134 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | No | No |
| Battery Life | 12 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Built in Microphone | Yes | Yes |
| EQ | Yes | Yes (App + ULT button) |
| IP Rating | IP67 | IP67 |
| Party Mode | Yes (Partyconnect up to 100 speakers) | Yes (Party Connect up to 100 speakers) |
| Power Bank | No | Yes |
| Power Input | USB-C | USB-C |
| Stereo | No | Yes |
| TWS | Yes | Yes |
| Weight | 1.4 lbs / 650 g | 2.6 lbs / 1.2 kg |
| Bluetooth Codecs | AAC, SBC | SBC, AAC, LDAC |
| Bluetooth Version | 5.3 | 5.2 |
| Dimensions | 8.1" x 3.0" x 3.0" (206 x 77 x 76 mm) | 10.1" x 4.5" x 3.1" (256 x 113 x 79 mm) |
| Drivers | 83mm x 42mm woofer, 16mm tweeter + passive radiator | 1x 20mm tweeter + 1x 86mm x 46mm woofer |
| Output Power | - | 27W |
The Two Speakers In Full
Sony ULT Field 1: $138.00 Amazon
Pros: IP67 rated, survives drops and 1m submersion. Real-world battery around 28+ hours with ULT (bass boost) mode off. Stereo-pairs with a second ULT Field 1.
Cons: Upper midrange peak, rolled off treble
| App | Yes |
|---|---|
| Aux Input | No |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | AAC, SBC |
| Bluetooth Version | 5.3 |
| Built in Microphone | Yes |
| Dimensions | 8.1" x 3.0" x 3.0" (206 x 77 x 76 mm) |
| Drivers | 83mm x 42mm woofer, 16mm tweeter + passive radiator |
| EQ | Yes |
| IP Rating | IP67 |
| Party Mode | Yes (Partyconnect up to 100 speakers) |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| Weight | 1.4 lbs / 650 g |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Links
Sony ULT Field 3: $148 Amazon
Pros: IP67 rated, dustproof and water resistant. 24 hour battery life. App with 10-band EQ. Party Connect with up to 100 speakers. USB-C in/out for charging your phone.
Cons: Sounds a bit hollow, a bit boosted in the treble.
| App | Yes |
|---|---|
| Aux Input | No |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 5.2 |
| Built in Microphone | Yes |
| Dimensions | 10.1" x 4.5" x 3.1" (256 x 113 x 79 mm) |
| Drivers | 1x 20mm tweeter + 1x 86mm x 46mm 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 | 2.6 lbs / 1.2 kg |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Sony ULT Field 3 vs JBL Charge 6
- Sony ULT Field 3 vs KEF Muo gen2
- Sony ULT Field 3 vs Marshall Emberton II
- Sony ULT Field 3 vs Minirig 2
- Sony ULT Field 3 vs Minirig 3
- Sony ULT Field 3 vs Sony SRS-XE300
- Sony ULT Field 3 vs Tribit Stormbox Mini+
- Sony ULT Field 3 vs Turtlebox Ranger
- Sony ULT Field 3 vs Yamaha True X Speaker 1A
- Sony ULT Field 3 vs JBL Charge Essential 2
- Sony ULT Field 3 vs JBL Flip 7
- Sony ULT Field 3 vs JBL Flip Essential
- Sony ULT Field 3 vs Marshall Emberton III
- Sony ULT Field 3 vs Ultimate Ears Megaboom 3
- Sony ULT Field 3 vs Xiaomi Sound Party
- Sony ULT Field 3 vs Bose Soundlink Flex 2nd gen
- Sony ULT Field 3 vs Harman Kardon Luna
- Sony ULT Field 3 vs Huawei Sound Joy
- Sony ULT Field 3 vs JBL Charge 5
- Sony ULT Field 3 vs JBL Flip 6
- Sony ULT Field 3 vs Sonos Roam
- Sony ULT Field 3 vs Sonos Roam 2
- Sony ULT Field 3 vs Sony SRS-XB20
- Sony ULT Field 3 vs Sony XB33
- Sony ULT Field 3 vs Soundcore Boom 3i
- Sony ULT Field 3 vs Ultimate Ears Boom 3
- 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.