Choosing between the Poly Edge E400 and the Poly Edge E450? Here's how they differ on audio and price, and which one fits your room.
Short answer: pick the Edge E400 if you want the one that costs $52 less. Pick the Edge E450 if you want a dual-display SIP phone with Wi-Fi and Bluetooth.
Both are appliance desk phones; the difference is price.
Side by side
| Edge E400 | Edge E450 | |
|---|---|---|
| Price | $230 | $282 |
| Display | 3.5" primary + 2.4" secondary color IPS LCD, RGB status lightbar | 3.5" primary + 2.4" secondary color IPS LCD, 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 | 14 line keys (8+6 on two displays), up to 44 assignments |
| 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: NFC (no Bluetooth or Wi-Fi); 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.
Which should you buy?
- Choose the Edge E400 if you want the one that costs $52 less. See the Edge E400
- Choose the Edge E450 if you want a dual-display SIP phone with Wi-Fi and Bluetooth. See the Edge E450
Also compared
- Poly Edge E400 vs Yealink SIP-T57W
- Yealink MP54 E2 vs Poly Edge E400
- Poly Edge E400 vs Poly Edge E550
- Poly Edge E450 vs Yealink MP56 E2
- Yealink SIP-T54W vs Poly Edge E450
Still deciding? Read the Edge E400 guide and the Edge E450 guide, see Edge E400 alternatives and Edge E450 alternatives, compare them interactively, or send us your room details for a recommendation.
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