PowerConf S500 vs Speak2 75 Comparison
Compare PowerConf S500 vs Speak2 75 side by side: specs, ratings, pros and cons, and which one fits your room best.
On this page
At a Glance
PowerConf S500
The Anker PowerConf S500 is a conference speakerphone for rooms up to 12 people, or 20 with two linked units. It has four mics with VoiceRadar voice tracking and two-way noise reduction, a 1.75-inch 10 W speaker and a 5 m pickup range.
- Best For
- Zoom rooms
- Mics
- 4
- Pickup
- 5 m
- Talk Time
- 13 h
- BT
- 5.4
- Certified
- Zoom Rooms, Google Meet
Speak2 75
The Jabra Speak2 75 is a portable speakerphone with four microphones, a 65 mm speaker and full-duplex audio, so people can talk at the same time without cutting each other off. Jabra rates the pickup at 2.5 m and the room size at up to 4.5 x 4.5 m.
- Best For
- Small rooms
- Mics
- 4
- Pickup
- 2.5 m
- Talk Time
- 32 h
- BT
- 5.2
- Certified
- Microsoft Teams, Google Meet, Amazon Chime, Cisco, Avaya, Unify, Alcatel-Lucent
Review Scores Compared
Expert Score
Mic Array & Full-Duplex
Speaker Clarity & Volume
Connectivity & Daisy-Chaining
Portability & Power
Call Controls & Certifications
Why PowerConf S500 Beats Speak2 75 (and Vice Versa)
Why PowerConf S500 beats Speak2 75
- Better mic array & full-duplex: 9.4 vs 8.5 out of 10
- Pickup Range: 5 m vs 2.5 m
- Bluetooth Version: 5.4 vs 5.2
- Weight: 422 g vs 466 g
Why Speak2 75 beats PowerConf S500
- Better portability & power: 9.5 vs 8.0 out of 10
- Better call controls & certifications: 9.5 vs 8.5 out of 10
- Mic Frequency Range: 150 Hz - 14,000 Hz (super-wideband up to 16 kHz) vs 32 kHz sample rate (ultra HD voice)
- Speaker: 65 mm full-range vs 1.75 in full-range, 10 W
- Talk Time: 32 h vs 13 h
- Charging Time: 2.5 h vs 4 h
Review-score leads of 0.5+ points out of 10 first, then specs where only one comes out ahead.
Full Specifications
General
| PowerConf S500 | Speak2 75 | |
|---|---|---|
| Best For | Zoom rooms | Small rooms |
| Ideal Room Size | Up to 12 people (20 with two linked units) | Up to 4.5 x 4.5 m (14.76 x 14.76 ft) |
| Max People | 12 | — |
| Form Factor | Puck | Puck |
Microphones
| PowerConf S500 | Speak2 75 | |
|---|---|---|
| Microphones | 4 | 4 |
| Pickup Range | 5 m Better | 2.5 m |
| Mic Frequency Range | 32 kHz sample rate (ultra HD voice) | 150 Hz - 14,000 Hz (super-wideband up to 16 kHz) Better |
| Full Duplex | Yes | Yes |
| Echo Cancellation | Yes | Yes |
| Noise Reduction | Yes | Yes |
| Mic Type | — | Digital MEMS |
| Audio Bandwidth | — | Super-wideband (up to 16 kHz) |
| Automatic Gain Control | Yes (voice balancing) | Yes |
| De-reverberation | — | Yes |
Speaker
| PowerConf S500 | Speak2 75 | |
|---|---|---|
| Speaker | 1.75 in full-range, 10 W | 65 mm full-range Better |
| Max Output | — | 88 dB SPL @ 0.5 m |
| Speaker Frequency Range | 80 Hz - 20 kHz | 80 Hz - 20,000 Hz (music), 150 Hz - 14,000 Hz (speech) |
| Speaker Drivers | — | 1 |
| Music Playback | Yes | Yes |
Battery & Charging
| PowerConf S500 | Speak2 75 | |
|---|---|---|
| Talk Time | 13 h | 32 h Better |
| Battery | 6000 mAh (16 h playtime) | Li-ion, 4700 mAh |
| Charging Time | 4 h | 2.5 h Better |
| Battery Capacity | — | 4700 mAh |
| Charging Port | — | Integrated USB-C cable |
| Mains Powered | No | No |
Connectivity
| PowerConf S500 | Speak2 75 | |
|---|---|---|
| Connection | USB-C, Bluetooth, USB dongle | USB-C, USB-A, Bluetooth |
| Bluetooth Version | 5.4 Better | 5.2 |
| USB Dongle | Yes | Yes |
| Link Two Units | Yes (two units, wireless) | Yes |
| Certifications | Zoom Rooms, Google Meet | Microsoft Teams, Google Meet, Amazon Chime, Cisco, Avaya, Unify, Alcatel-Lucent Better |
| USB Connector | — | Integrated USB-C cable with USB-A adapter |
| Cable Length | — | 0.75 m |
| Bluetooth Range | — | 30 m |
| Multiple Sources | — | Yes (2 simultaneous, 8 paired) |
| Bluetooth Profiles | — | A2DP, AVRCP, BLE, HFP, HSP |
Design & Build
| PowerConf S500 | Speak2 75 | |
|---|---|---|
| Weight | 422 g Better | 466 g |
| Dimensions | 127 x 127 x 51 mm | 132.5 x 35 mm (diameter x height) |
| Dust/Water Rating | — | IP64 |
| Management Software | AnkerWork app and PC software | Jabra Direct, Jabra Sound+, Jabra Xpress |
| Carry Case | — | Yes (carry pouch) |
| IT Remote Management | — | Jabra Xpress |
In the Box
| PowerConf S500 | Speak2 75 | |
|---|---|---|
| In the Box | Speakerphone, USB-C cable, Bluetooth dongle, welcome guide | Speakerphone, Link 390 Bluetooth adapter (variant dependent), carry pouch |
| Warranty | — | 2 years |
Identifiers
| PowerConf S500 | Speak2 75 | |
|---|---|---|
| Model Number | A3305 | — |
Compatibility
| PowerConf S500 | Speak2 75 | |
|---|---|---|
| Plug and Play | — | Yes |
Takeaways
- It's a tie on our rating (4.5/5) between PowerConf S500 and Speak2 75, so choose on the rows that matter most to you.
- Choose PowerConf S500 for zoom rooms.
- Choose Speak2 75 for small rooms.
Pros and Cons
PowerConf S500
PROS
- 5 m pickup, rooms up to 12
- Zoom Rooms and Google Meet certified
- Bluetooth 5.4 plus USB dongle
- Link two units for 20 people
CONS
- No Teams certification listed
- 13 h talk time
Speak2 75
PROS
- Up to 32 h talk time
- Four mics with full duplex
- Bluetooth 5.2, Link 390 adapter on some variants
- IP64, link two units
CONS
- Heaviest portable model here at 466 g
- Pickup suits small rooms only
Similar Comparisons
PowerConf S500 vs Luna
- PowerConf S500 vs Sync 40
- PowerConf S500 vs Sync 60
Speak2 75 vs Luna- Speak2 75 vs Sync 40
- Speak2 75 vs Sync 60
Quick Verdict
- PowerConf S500 9.2Best overallLeads in Mic Array & Full-Duplex, Connectivity & Daisy-Chaining
- Speak2 75 9.1Leads in Portability & Power, Call Controls & Certifications