Sync 20 vs CP900 Comparison

Compare Sync 20 vs CP900 side by side: specs, ratings, pros and cons, and which one fits your room best.

On this page
Poly Sync 20
Sync 20
Yealink CP900
CP900

At a Glance

Sync 20

The Poly Sync 20 is a personal speakerphone with a three-mic steerable array, a 40 mm speaker and a 2 m pickup range for rooms up to about 4 x 4 m.

View on Poly (opens in a new tab)
Best For
Personal desk use
Mics
3
Pickup
2 m
Talk Time
20 h
BT
5.1
Certified
Microsoft Teams (Teams model), Zoom
CP900

The Yealink CP900 is a portable speakerphone with a six-MEMS beamforming array for 360-degree pickup, rated at 2 m for up to six people. Its speaker is 7 W peak (3 W RMS).

View on Yealink (opens in a new tab)
Best For
Small groups
Mics
6
Pickup
2 m
Talk Time
12 h
BT
4.2
Certified
Microsoft Teams

Review Scores Compared

Expert Score

  • Sync 208.1/10
  • CP9008.1/10

Mic Array & Full-Duplex

  • Sync 207.9/10
  • CP9008.8/10 Leads

Speaker Clarity & Volume

  • Sync 208.9/10 Leads
  • CP9006.1/10

Connectivity & Daisy-Chaining

  • Sync 205.8/10
  • CP9008.8/10 Leads

Portability & Power

  • Sync 209.4/10 Leads
  • CP9008.0/10

Call Controls & Certifications

  • Sync 2010.0/10 Leads
  • CP9009.8/10

Why Sync 20 Beats CP900 (and Vice Versa)

Why Sync 20 beats CP900

  • Better speaker clarity & volume: 8.9 vs 6.1 out of 10
  • Better portability & power: 9.4 vs 8.0 out of 10
  • Speaker: 40 mm vs 7 W peak, 3 W RMS
  • Speaker Frequency Range: 80 Hz - 20 kHz vs 115 Hz - 16 kHz (USB music mode), 115 Hz - 8 kHz (conference…
  • Talk Time: 20 h vs 12 h
  • Bluetooth Version: 5.1 vs 4.2

Why CP900 beats Sync 20

  • Better connectivity & daisy-chaining: 8.8 vs 5.8 out of 10
  • Better mic array & full-duplex: 8.8 vs 7.9 out of 10
  • Microphones: 6 vs 3
  • Mic Frequency Range: 115 Hz - 7 kHz (conference mode) vs 100 Hz - 6.7 kHz
  • Charging Time: 3 h vs 4 h
  • Weight: 320 g vs 360 g

Review-score leads of 0.5+ points out of 10 first, then specs where only one comes out ahead.

Full Specifications

General

Sync 20CP900
Best ForPersonal desk useSmall groups
Ideal Room SizeUp to 4 x 4 mUp to 6 people
Form FactorBar (portable)Puck

Microphones

Sync 20CP900
Microphones36 Better
Pickup Range2 m2 m
Mic Frequency Range100 Hz - 6.7 kHz115 Hz - 7 kHz (conference mode) Better
Full DuplexYesYes
Echo CancellationYesYes
Noise ReductionYesYes
Mic Type3-mic steerable array—

Speaker

Sync 20CP900
Speaker40 mm Better7 W peak, 3 W RMS
Max Output86 dB SPL (nominal)—
Speaker Frequency Range80 Hz - 20 kHz Better115 Hz - 16 kHz (USB music mode), 115 Hz - 8 kHz (conference)
Speaker Drivers1—

Battery & Charging

Sync 20CP900
Talk Time20 h Better12 h
BatteryLi-ion, 3200 mAhLi-polymer, 2450 mAh
Charging Time4 h3 h Better
Charges Your PhoneYes (USB-A port)—
Mains PoweredNoNo

Connectivity

Sync 20CP900
ConnectionUSB-A or USB-C (by model), BluetoothUSB, Bluetooth
Bluetooth Version5.1 Better4.2
USB DongleNo (Sync 20+ includes BT600)Optional (BT50)
Link Two UnitsNo—
CertificationsMicrosoft Teams (Teams model), ZoomMicrosoft Teams
Cable Length0.72 m—
Multiple Sources—Yes (3 devices; merge USB and Bluetooth calls)
Bluetooth ProfilesA2DP, AVRCP, HFP, HSP, BLE—

Design & Build

Sync 20CP900
Weight360 g320 g Better
Dimensions34 x 95 x 182 mm132.5 x 35.5 mm (diameter x height)
Dust/Water RatingIP64—
ColorsSilver—
Teams / Call Button—Yes (dedicated Teams button)
Carry CaseYes (travel case)—
Lanyard / StandLanyard included—

In the Box

Sync 20CP900
In the BoxSpeakerphone, carry case, lanyardSpeakerphone, zipper bag, quick start guide (BT50 dongle optional)
Warranty2 years—

Identifiers

Sync 20CP900
Model Number772C8AA (Teams, USB-A)—

Compatibility

Sync 20CP900
OS CompatibilityWindows 11, Windows 10, macOS—
Plug and Play—Yes

Takeaways

  • It's a tie on our rating (4/5) between Sync 20 and CP900, so choose on the rows that matter most to you.
  • Choose Sync 20 for personal desk use.
  • Choose CP900 for small groups.

Pros and Cons

Sync 20

PROS

  • Up to 20 h talk time
  • IP64
  • USB-A port charges a phone
  • Teams (Teams model) and Zoom

CONS

  • Three mics, 2 m pickup
  • Dongle only on the Sync 20+

CP900

PROS

  • Six-mic 360° array
  • Light at 320 g
  • Up to 400 days standby
  • Optional BT50 dongle

CONS

  • Bluetooth 4.2
  • No certification listed on the datasheet

Similar Comparisons

Quick Verdict

  • Sync 20 8.1Leads in Speaker Clarity & Volume, Portability & Power, Call Controls & Certifications
  • CP900 8.1Leads in Mic Array & Full-Duplex, Connectivity & Daisy-Chaining