Choosing between the Poly Edge E450 and the Poly Edge E550? Here's how they differ on audio and price, and which one fits your room.
Short answer: pick the Edge E450 if you want the one that costs less. Pick the Edge E550 if you want a top Edge E SIP phone, 5-inch screen, Wi-Fi, Bluetooth.
Both are appliance desk phones; the difference is screen and price.
Side by side
| Edge E450 | Edge E550 | |
|---|---|---|
| Price | $282 | $298 |
| Display | 3.5" primary + 2.4" secondary color IPS LCD, RGB status lightbar | 5" color IPS LCD, 800 x 480, RGB status lightbar |
| Power | 13 W max; optional 5 V 3 A adapter sold separately | 13 W max; optional 5 V 3 A adapter sold separately |
| Warranty | 1 year limited | 1 year limited |
| Line keys | 14 line keys (8+6 on two displays), up to 44 assignments | 12 line keys, up to 48 assignments (34 SIP lines) |
| Headset ports | 1 RJ-9, 1 EHS port (optional APP-51 adapter) | 1 RJ-9, 1 EHS port (optional APP-51 adapter) |
| Audio | Poly HD Voice, NoiseBlockAI (speakerphone), Acoustic Fence (handset/headset) | Poly HD Voice, NoiseBlockAI (speakerphone), Acoustic Fence (handset/headset) |
| Microphone response | 150 Hz to 14 kHz | 150 Hz to 14 kHz |
| Codecs | G.711, G.722, G.722.1, G.729AB, iLBC, Opus | G.711, G.722, G.722.1, G.729AB, iLBC, Opus |
| Connections | Wireless: Bluetooth 5.0, dual-band Wi-Fi, NFC; Network: 2 x Gigabit Ethernet (RJ-45), PoE IEEE 802.3af Class 4; USB: 1 x USB-C 2.0 (media, storage, headset, expansion module) | Wireless: Bluetooth 5.0, dual-band Wi-Fi, NFC; Network: 2 x Gigabit Ethernet (RJ-45), PoE IEEE 802.3af Class 4; USB: 1 x USB-C 2.0 (media, storage, headset, expansion module) |
Specs are Poly's published figures. Prices can change.
The key differences
- Screen: Edge E450: 3.5" primary + 2.4" secondary color IPS LCD, RGB status lightbar. Edge E550: 5" color IPS LCD, 800 x 480, RGB status lightbar.
Which should you buy?
- Choose the Edge E450 if you want the one that costs less. See the Edge E450
- Choose the Edge E550 if you want a top Edge E SIP phone, 5-inch screen, Wi-Fi, Bluetooth. See the Edge E550
Also compared
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- Yealink SIP-T54W vs Poly Edge E450
- Yealink SIP-T57W vs Poly Edge E450
- Yealink MP56 E2 vs Poly Edge E550
- Yealink SIP-T54W vs Poly Edge E550
Still deciding? Read the Edge E450 guide and the Edge E550 guide, see Edge E450 alternatives and Edge E550 alternatives, compare them interactively, or send us your room details for a recommendation.
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