PowerConf S3 vs Speak2 40 Comparison
Compare PowerConf S3 vs Speak2 40 side by side: specs, ratings, pros and cons, and which one fits your room best.
On this page
At a Glance
PowerConf S3
The Anker PowerConf S3 is a Bluetooth speakerphone with six microphones and a 3 W speaker. Anker lists a pickup range of up to 4.9 m (16 ft) and rooms up to eight people.
- Best For
- Home offices
- Mics
- 6
- Pickup
- 4.9 m (16 ft)
- Talk Time
- 24 h
- BT
- 5.3
- Certified
- —
Speak2 40
The Jabra Speak2 40 is a wired USB speakerphone. It has four microphones, a 50 mm speaker, full-duplex audio and a 2.3 m pickup range.
- Best For
- Fixed desks
- Mics
- 4
- Pickup
- 2.3 m
- Talk Time
- —
- BT
- —
- Certified
- Microsoft Teams, Google Meet, Amazon Chime
Review Scores Compared
Expert Score
Mic Array & Full-Duplex
Speaker Clarity & Volume
Connectivity & Daisy-Chaining
Portability & Power
Call Controls & Certifications
Why PowerConf S3 Beats Speak2 40 (and Vice Versa)
Why PowerConf S3 beats Speak2 40
- Better mic array & full-duplex: 9.7 vs 8.4 out of 10
- Better connectivity & daisy-chaining: 5.9 vs 5.4 out of 10
- Microphones: 6 vs 4
- Pickup Range: 4.9 m (16 ft) vs 2.3 m
- Mains Powered: No vs Yes (USB bus powered)
Why Speak2 40 beats PowerConf S3
- Better speaker clarity & volume: 8.3 vs 5.0 out of 10
- Mic Frequency Range: 150 Hz - 7,000 Hz (wideband) vs 16 kHz sample rate (HD voice)
- Speaker: 50 mm full-range vs 3 W
- Weight: 245 g vs 340 g
Review-score leads of 0.5+ points out of 10 first, then specs where only one comes out ahead.
Full Specifications
General
| PowerConf S3 | Speak2 40 | |
|---|---|---|
| Best For | Home offices | Fixed desks |
| Ideal Room Size | Up to 8 people | Up to 4.5 x 4.5 m (14.76 x 14.76 ft) |
| Release Year | 2022 | — |
| Max People | 8 | — |
| Form Factor | Puck | Puck |
Microphones
| PowerConf S3 | Speak2 40 | |
|---|---|---|
| Microphones | 6 Better | 4 |
| Pickup Range | 4.9 m (16 ft) Better | 2.3 m |
| Mic Frequency Range | 16 kHz sample rate (HD voice) | 150 Hz - 7,000 Hz (wideband) Better |
| Full Duplex | Yes | Yes |
| Echo Cancellation | Yes | Yes |
| Noise Reduction | Yes | Yes |
| Pickup Pattern | 360° | — |
| Mic Type | — | Digital MEMS |
| Audio Bandwidth | — | Wideband (up to 8 kHz) |
| Automatic Gain Control | Yes (voice balancing) | Yes (outgoing audio) |
Speaker
| PowerConf S3 | Speak2 40 | |
|---|---|---|
| Speaker | 3 W | 50 mm full-range Better |
| Max Output | — | 83 dB SPL @ 0.5 m |
| Speaker Frequency Range | — | 100 Hz - 20,000 Hz (music), 150 Hz - 7,000 Hz (speech) |
| Speaker Drivers | — | 1 |
| Music Playback | — | Yes |
Battery & Charging
| PowerConf S3 | Speak2 40 | |
|---|---|---|
| Talk Time | 24 h | — |
| Battery | 6700 mAh | — |
| Charges Your Phone | Yes (USB PowerIQ) | — |
| Battery Capacity | 6700 mAh | — |
| Mains Powered | No Better | Yes (USB bus powered) |
Connectivity
| PowerConf S3 | Speak2 40 | |
|---|---|---|
| Connection | USB-C, Bluetooth | USB-C, USB-A |
| Bluetooth Version | 5.3 | — |
| USB Dongle | No | No |
| Link Two Units | No | No |
| Certifications | — | Microsoft Teams, Google Meet, Amazon Chime |
| USB Connector | — | Integrated USB-C cable with USB-A adapter |
| Cable Length | — | 0.8 m |
Design & Build
| PowerConf S3 | Speak2 40 | |
|---|---|---|
| Weight | 340 g | 245 g Better |
| Dimensions | 124 x 124 x 28 mm | 120 x 33 mm (diameter x height) |
| Dust/Water Rating | — | IP64 |
| Management Software | AnkerWork app | Jabra Direct, Jabra Xpress |
| Carry Case | — | Yes (carry pouch) |
| IT Remote Management | — | Jabra Xpress |
In the Box
| PowerConf S3 | Speak2 40 | |
|---|---|---|
| In the Box | Speakerphone, USB-A & USB-C cable, travel pouch | Speakerphone, carry pouch |
| Warranty | 18 months | 2 years |
Identifiers
| PowerConf S3 | Speak2 40 | |
|---|---|---|
| Model Number | A3302 | — |
Compatibility
| PowerConf S3 | Speak2 40 | |
|---|---|---|
| Plug and Play | — | Yes |
Takeaways
- It's a tie on our rating (4/5) between PowerConf S3 and Speak2 40, so choose on the rows that matter most to you.
- Choose PowerConf S3 for home offices.
- Choose Speak2 40 for fixed desks.
Pros and Cons
PowerConf S3
PROS
- Six microphones
- Up to 24 h talk time
- Bluetooth 5.3 and USB-C
- Charges a phone
CONS
- No Teams or Zoom certification listed
- Cannot link two units
Speak2 40
PROS
- Four mics with full duplex
- No battery to charge
- USB-C and USB-A on the cable
- IP64, 245 g
CONS
- No Bluetooth
- No battery
Similar Comparisons
PowerConf S3 vs Speak2 55
PowerConf S3 vs Sync 20
PowerConf S3 vs CP900
Speak2 40 vs Speak2 55
Speak2 40 vs Sync 20
Speak2 40 vs CP900
Quick Verdict
- PowerConf S3 7.5Leads in Mic Array & Full-Duplex, Connectivity & Daisy-Chaining
- Speak2 40 7.8Best overallLeads in Speaker Clarity & Volume


