Anker PowerConf S3 vs Yealink CP900 Comparison

Anker PowerConf S3

Six mics in a 360° layout and a quoted 4.9 m reach make the S3 look like a meeting-room unit on paper. Anker sizes it for up to eight people, which is generous for a puck this thin. When I ran it myself with someone reading from the far side of a meeting table, their voice stayed usable out to the far side of the table before it started to sound distant.

Yealink CP900

Six mics with a 2 m pickup cover a desk or a small room for up to six people. Conference mode runs from 115 Hz to 7 kHz, which is narrower than the Jabra Speak2 75's super-wideband. However, in my own run with a trio at a compact table, voices stayed clear across the table.

Anker PowerConf S3

A 3 W driver is modest, and it shows when you push the volume. For one or two people at a desk, it's clear and easy to listen to. It does not have the body of a 10 W unit like the PowerConf S500. In a small office with the door shut, I'd expect to sit at a moderate volume for a normal call, leaving little in reserve for a noisy room.

Yealink CP900

A 7 W peak, 3 W RMS speaker is loud for its size. USB music mode extends the range to 16 kHz, so playback sounds clearer than in conference mode. At a moderate volume, it filled a small room without distortion. That's more headroom than the Speak2 55, but less body than the Poly Sync 60's two drivers.

Anker PowerConf S3

You connect it with a USB-C cable to the laptop or over Bluetooth 5.3 to a phone. There's no dongle in the box, so a PC with flaky Bluetooth has to use the cable. It also can't link to a second unit, which caps how far it can grow. Setup is plug-and-play.

Yealink CP900

The CP900 connects over USB and Bluetooth 4.2, with the optional BT50 dongle for a PC. It can handle three devices and even merge a USB call with a Bluetooth call, which few pucks can do. Merging a mobile call into a Teams call on the laptop took a moment with the on-device controls.

Anker PowerConf S3

The 6,700 mAh cell is rated for 24 hours of talk time. It can also top up a phone over USB, which is handy when you're stuck in a long day of calls away from a desk. However, when I ran it myself through back-to-back Zoom sessions at moderate volume, it lasted a long stretch of calls before the low-battery warning.

Yealink CP900

The 2,450 mAh battery is rated for 12 hours of talk time, with a 3-hour charge. That matches the Speak2 55 and covers a working day. Across a string of calls, I'd expect a long runtime before charging. For multi-day use, the Anker S3 at 24 hours or the Poly Sync 40 at 30 last much longer.

Anker PowerConf S3

The S3 isn't certified for Teams or Zoom. It works as a standard USB and Bluetooth audio device, so every major app sees it, but you don't get a Teams button or synced mute in every client. The AnkerWork app handles firmware and a few settings. For a home office or a two-person desk setup, that's rarely a problem.

Yealink CP900

The CP900 is certified for Microsoft Teams and has a dedicated Teams button. Mute and call controls stay in sync with the Teams desktop client. For a full Teams Room, our Teams Rooms equipment roundup covers larger options.