Sync 20 vs Sync 40 Comparison

Compare Sync 20 vs Sync 40 side by side: specs, ratings, pros and cons, and which one fits your room best.

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At a Glance

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.

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Best For: Personal desk use
Mics: 3
Pickup: 2 m
Talk Time: 20 h
BT: 5.1
Certified: Microsoft Teams (Teams model), Zoom

Sync 40

The Poly Sync 40 is a speakerphone for huddle rooms up to about 5 x 5 m. It has three mics, a 50 mm speaker, a 2.5 m pickup range and two status light bars visible from any side.

View on Poly (opens in a new tab)

Best For: Huddle rooms
Mics: 3
Pickup: 2.5 m
Talk Time: 30 h
BT: 5.1
Certified: Microsoft Teams (Teams model), Zoom

Review Scores Compared

Expert Score

Sync 208.1/10
Sync 408.6/10 Leads

Mic Array & Full-Duplex

Sync 207.9/10
Sync 408.1/10 Leads

Speaker Clarity & Volume

Sync 208.9/10
Sync 409.2/10 Leads

Connectivity & Daisy-Chaining

Sync 205.8/10
Sync 408.0/10 Leads

Portability & Power

Sync 209.4/10 Leads
Sync 409.1/10

Call Controls & Certifications

Sync 2010.0/10 Leads
Sync 409.8/10

Why Sync 20 Beats Sync 40 (and Vice Versa)

Why Sync 20 beats Sync 40

Charging Time: 4 h vs 5 h
Weight: 360 g vs 610 g

Why Sync 40 beats Sync 20

Better connectivity & daisy-chaining: 8.0 vs 5.8 out of 10
Pickup Range: 2.5 m vs 2 m
Speaker: 50 mm vs 40 mm
Max Output: 89 dB SPL (nominal) vs 86 dB SPL (nominal)
Speaker Frequency Range: 75 Hz - 20 kHz vs 80 Hz - 20 kHz
Talk Time: 30 h vs 20 h

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

Full Specifications

Show only differences

General

	Sync 20	Sync 40
Best For	Personal desk use	Huddle rooms
Ideal Room Size	Up to 4 x 4 m	Up to 5 x 5 m
Form Factor	Bar (portable)	Bar

Microphones

	Sync 20	Sync 40
Microphones	3	3
Pickup Range	2 m	2.5 m Better
Mic Frequency Range	100 Hz - 6.7 kHz	100 Hz - 6.7 kHz
Full Duplex	Yes	Yes
Echo Cancellation	Yes	Yes
Noise Reduction	Yes	Yes
Mic Type	3-mic steerable array	3-mic steerable array

Speaker

	Sync 20	Sync 40
Speaker	40 mm	50 mm Better
Max Output	86 dB SPL (nominal)	89 dB SPL (nominal) Better
Speaker Frequency Range	80 Hz - 20 kHz	75 Hz - 20 kHz Better
Speaker Drivers	1	1

Battery & Charging

	Sync 20	Sync 40
Talk Time	20 h	30 h Better
Battery	Li-ion, 3200 mAh	Li-ion, 5000 mAh
Charging Time	4 h Better	5 h
Charges Your Phone	Yes (USB-A port)	—
Mains Powered	No	No

Connectivity

	Sync 20	Sync 40
Connection	USB-A or USB-C (by model), Bluetooth	USB-A, USB-C, Bluetooth
Bluetooth Version	5.1	5.1
USB Dongle	No (Sync 20+ includes BT600)	No (Sync 40+ includes BT600)
Link Two Units	No	Yes (two units, wireless) Better
Certifications	Microsoft Teams (Teams model), Zoom	Microsoft Teams (Teams model), Zoom
Cable Length	0.72 m	1.05 m Better
Bluetooth Range	—	30 m
Bluetooth Profiles	A2DP, AVRCP, HFP, HSP, BLE	A2DP, AVRCP, HFP, HSP, BLE

Design & Build

	Sync 20	Sync 40
Weight	360 g Better	610 g
Dimensions	34 x 95 x 182 mm	38 x 102 x 273 mm
Dust/Water Rating	IP64	IP64
Colors	Silver	Silver
Controls	—	Touch: call answer/end, mute, volume, programmable button, pairing; buttons: power, wireless daisy chain
Mute Button	—	Yes
Carry Case	Yes (travel case)	—
Lanyard / Stand	Lanyard included	—

In the Box

	Sync 20	Sync 40
In the Box	Speakerphone, carry case, lanyard	Speakerphone, USB-A cable, USB-C cable, quick start guide
Warranty	2 years	2 years

Identifiers

	Sync 20	Sync 40
Model Number	772C8AA (Teams, USB-A)	772C4AA

Compatibility

	Sync 20	Sync 40
OS Compatibility	Windows 11, Windows 10, macOS	Windows 11, Windows 10, macOS

Takeaways

Our pick: Sync 40, with the highest spec-based rating (4.5/5).
Choose Sync 20 for personal desk use.
Choose Sync 40 for huddle rooms.

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+