Sony Xperia Ear Duo
Open-ear audio, calls and original phone assistant functions
- Battery / power
- 56 mAh units / 740 mAh charging case ↗
Keep in mind Legacy assistant features depend on operating system, app and discontinued services.
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Lowest recorded store prices take priority over announced or launch prices, within the selected source market. Currencies use the dated EUR reference rates. Deposits and recurring charges are excluded from price order; missing prices stay last. Original price records remain visible.
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The differences that matter
Amazon Echo Loop
Button-activated Alexa requests and calls through a paired phone
Keep in mind Legacy wearable profile. Current production, retailer stock and app/service compatibility were not established.
Published specifications and documented constraints. See the full comparison below for prices and sources.
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| AI wearablesAdd a model |  |  |
|---|---|---|
| Prices · all markets | Price not verified 0 offer records & sourcesNo verified price in this audit. | $129.99 USD≈ €116 EURECB 2026-10-13US · Historical price · Historical original launch offer; no current fulfilment 1 offer records & sources$129.99 USD≈ €116 EURECB 2026-10-13 US · Historical price Historical original launch offer; no current fulfilmentOriginal manufacturer 2019 Day 1 Edition invite price Original maker launch announcement. Legacy hardware and cloud services must not be assumed usable today.Check merchant offer ↗Price source ↗ Checked 2026-10-12 |
| Designed for | Open-ear audio, calls and original phone assistant functions ↗ | Button-activated Alexa requests and calls through a paired phone ↗ |
| Form factor | Wireless open-ear under-ear stereo headset ↗ | Smart ring ↗ |
| Charging | USB-C case; 7 minutes charging for about 1 hour audio ↗ | Not verified |
| Battery / power | 56 mAh units / 740 mAh charging case ↗ | Not verified |
| Weight | Approximately 10.6 g each unit; 76 g case ↗ | Not verified |
| Controls | Not verified | Physical button activates microphones ↗ |
| Dimensions | 17.5 × 59.6 × 10.2 mm each unit ↗ | Not applicable to this category |
| Drivers | 10 mm dynamic ↗ | Not applicable to this category |
| Wireless | Bluetooth 4.2/LE; NFMI between left/right units ↗ | Not applicable to this category |
| Audio codecs | SBC and AAC ↗ | Not applicable to this category |
| Runtime | Up to 4 hours audio, 16 hours total including case ↗ | Not applicable to this category |
| Microphones | Four total beam-forming microphones ↗ | Two microphones ↗ |
| Water / dust rating | IPX2 ↗ | Not applicable to this category |
| Speaker | Not applicable to this category | Miniature built-in speaker ↗ |
| Haptics | Not applicable to this category | Vibration motor for notifications, calls and activation ↗ |
| Phone Requirement | Not applicable to this category | Paired phone required ↗ |
| Service | Not applicable to this category | Requests streamed to Alexa cloud after button activation ↗ |
| Availability | Legacy Sony profile; maker explicitly ended CLOVA on 10 March 2021 and LINE MUSIC integration on 28 May 2020. | Limited-volume invite-only 2019 commercial programme. Current production and service compatibility were not established. |
| Important context |
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| Editorial pick & release | No editorial ranking recorded | No editorial ranking recorded |
| Evidence | Manufacturer source Checked 2026-10-13 | Manufacturer source Checked 2026-10-13 |
Battery claims use different conditions and are not a controlled benchmark. “Not verified” is an evidence gap, not a missing feature. Prices are dated regional snapshots. Deposits, bundles and historical launch prices are labelled. Brightness measurement methods and battery workloads vary by manufacturer.