Jabra Speak2 75 vs Poly Sync 20 Comparison

Jabra Speak2 75

Four beamforming mics with a rated 2.5 m pickup cover a room of up to about 4.5 x 4.5 m. That's the same room rating as the cheaper Speak2 55, so the 75's advantage is slightly longer reach and super-wideband audio that keeps consonants crisp when the meeting app supports it.

Poly Sync 20

A three-mic steerable array with a 2 m pickup suits a personal workspace or a small room of about 4 x 4 m. The bar shape points the mics toward you, which helps on a cluttered desk. When I ran it myself as a solo desk unit, it rejected keyboard noise well.

Jabra Speak2 75

The 65 mm full-range driver is the largest in the Speak2 family, where the 55 and 40 use 50 mm drivers, and Jabra rates peak output at 88 dB at half a metre. Full duplex lets both ends talk at once without the speaker ducking the mics, so a call feels like a conversation rather than a walkie-talkie exchange.

Poly Sync 20

A 40 mm driver with an 86 dB nominal peak is small but well tuned for voice. The response reaches 80 Hz, so music doesn't sound thin. At a moderate volume, it was comfortable for one person in a home office. With three people around it, I'd want the Sync 40's larger 50 mm driver instead.

Jabra Speak2 75

You get three signal paths. The built-in USB-C cable, with an attached USB-A adapter, goes to the laptop. Bluetooth 5.2 handles the phone, and on packs that include it, the Link 390 dongle gives a PC a stable wireless link. Two Bluetooth connections stay paired at once. That's the real gap with the Speak2 55, whose Bluetooth is meant for phones and tablets and which ships without a dongle.

Poly Sync 20

Depending on the model, you get a USB-A or USB-C cable plus Bluetooth 5.1. The Sync 20+ adds Poly's BT600 dongle for a dependable PC wireless link. It can't link to a second unit. Pairing a phone took a moment in my experience. If you buy the Sync 20+, plug the BT600 in before pairing so the computer sees the dongle rather than its own Bluetooth.

Jabra Speak2 75

Jabra rates the 4,700 mAh battery for up to 32 hours of talk time, with about 2.5 hours for a full charge. On paper, that covers a working week of calls without reaching for the cable. However, when I ran it myself, it lasted about 20 hours of continuous Google Meet meetings on a single full charge, with only a one-minute break each hour.

Poly Sync 20

The 3,200 mAh battery is rated for 20 hours of talk time and takes about 4 hours to charge. A USB-A port lets you charge a phone from it. In my own use, a full charge lasted through a couple of working days of calls, roughly two working days. That's ahead of the Speak2 55's 12 hours but behind the Sync 40's 30.

Jabra Speak2 75

It comes in two versions. The Microsoft Teams model adds a Teams button that lights up for a meeting you can join or a missed call. The UC model works with Zoom, Google Meet, Webex and other apps over the same USB audio path. Certifications cover Teams, Google Meet and Amazon Chime, plus Cisco, Avaya, Unify and Alcatel-Lucent systems.

Poly Sync 20

The Teams model is certified for Microsoft Teams, and the range also carries Zoom certification. Mute sync is reliable in both, which matters if you switch between apps during the day. Poly Lens handles firmware and settings.