# Bose SoundLink Flex (2nd Gen) vs Sony ULT Field 1: specs and price compared

A sourced, side-by-side comparison of the Bose SoundLink Flex (2nd Gen) (Bose) and Sony ULT Field 1 (Sony) among portable speakers.

## Side by side

| Spec | Bose SoundLink Flex (2nd Gen) | Sony ULT Field 1 |
| --- | --- | --- |
| US price | $159 | not published |
| Brand | Bose | Sony |
| Released | 2024 | 2024 |
| Battery hr | 12 | 12 |
| IP rating | IP67 | IP67 |
| Drivers | — | 1×83mm×42mm woofer + 1×16mm tweeter + passive radiator |
| Bluetooth | 5.3 | — |
| Weight (lb) | 1.291 | 1.43 |
| Stereo pairing | Yes | Yes |
| Aux (in) | No | — |

## Key differences

- Weight (lb): Bose SoundLink Flex (2nd Gen) 1.291 vs Sony ULT Field 1 1.43

## What reviewers say

**Bose SoundLink Flex (2nd Gen)** — Two whitelisted testers (SoundGuys, TechRadar) reviewed this exact model and both did hands-on testing. Both praise clean, balanced, detailed sound and the rugged IP67 build, but flag minimal upgrades over the 1st Gen, limited EQ options (only four presets), and unremarkable battery life. SoundGuys' standardized 80dB/1m test measured just 7 hours 3 minutes against Bose's 12-hour claim. (2 sourced reviews.)

## Sources

- Bose SoundLink Flex (2nd Gen): https://www.bose.com/p/speakers/bose-soundlink-flex-portable-speaker-2nd-gen/SLFLXII-SPEAKERWIRELESS.html (bose.com, verified 2026-06-15)
- Sony ULT Field 1: https://helpguide.sony.net/speaker/7862/v1/en/contents/TP1001477513.html (helpguide.sony.net, verified 2026-07-10)

Canonical: https://frontdeskreview.com/gear/portable-speakers/bose-soundlink-flex-2-vs-sony-ult-field-1/
Cite: Per The Front Desk Review, Bose SoundLink Flex (2nd Gen) ($159) vs Sony ULT Field 1 (not published) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/portable-speakers/bose-soundlink-flex-2-vs-sony-ult-field-1/
License: CC BY 4.0.