Short answer: the Teufel Rockster Cross for neutral tuning, the Sony ULT Field 5 for durability. The Teufel’s pretty neutral frequency response is its documented strength, while the Sony is IP67 rated and dustproof and water resistant at $348 against $199.99. The catch for the Sony is bass that is not as deep as others and sound quality that is just okay.
Buy the Teufel Rockster Cross. It is rated higher for sound quality than the Sony ULT Field 5 and costs less, which makes it the one to get unless you need something the other one does better.
If battery life is a priority, the Sony ULT Field 5 is rated for 25 hours versus 16 hours for the Teufel Rockster Cross.
Looking for alternatives? See the complete Portable Bluetooth rankings.
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Specifications Side By Side
| Sony ULT Field 5 | Teufel Rockster Cross | |
|---|---|---|
| Price | $348.00 | $199.99 |
| Ranked | #59 of 120 in Large Size Portable Bluetooth Speakers | #23 of 120 in Large Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | Yes | Yes |
| Battery Life | 25 hours (Manufacturer specified) | 16 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, AAC, LDAC | SBC, aptX |
| Bluetooth Version | 5.3 | 5.0 |
| Built-in Microphone | Yes | Yes |
| Dimensions | 12.6” x 5.7” x 4.9” (320 x 144 x 125 mm) | 15” x 6.3” x 5.1” (380 x 160 x 130 mm) |
| Drivers | 2x 46mm tweeters + 1x 79mm x 107mm woofer | 5” woofer, 2x textile dome tweeters + 2x passive radiators |
| EQ | Yes (App + ULT button) | No |
| IP Rating | IP67 | IPX5 |
| Party Mode | Yes (Party Connect up to 100 speakers) | No |
| Power Bank | Yes (USB-C) | Yes (USB-A) |
| Power Input | USB-C | DC barrel jack |
| Stereo | Yes | Partially |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 7.3 lbs (3.3 kg) | 5.3 lbs (2.4 kg) |
| Amplifier Power | 27W | 30W |
| Digital Aux Input | No | No |
| Strap | Yes (detachable shoulder strap) | Yes (detachable shoulder strap) |
| Bass Extension (-10dB) | - | 51Hz |
| Frequency Response | - | 50Hz - 20kHz (Manufacturer specified) |
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