In depth comparison and review of Erato RIO 3 and Huawei FreeBuds 4. Compare design, audio features, functions and other important specifications to easily choose the right headphones for you. Our goal is to help you uncover differences between the products and find the headphones that will best fit your needs.
| DESIGN AND DIMENSIONS | Erato RIO 3 | Huawei FreeBuds 4 |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Height | 4.6 cm | - | |
| Width | 5.1 cm | - | |
| Depth | 3.4 cm | - | |
| Weight | 14 g | - | |
| Dimensions & Weight Details | - | Charging case: 5.8 cm x 5.8 cm x 2.12 cm / 38 g Earbud: 1.68 cm x 1.85 cm x 4.14 cm / 4.1 g |
|
| Colour | Yellow | Black | Turquoise | Green | Red | Silver | Ceramic white | Silver frost | |
| Protection | Sweat-resistant, IPX5, water-resistant | Splashproof, dust-resistant, water-resistant | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | 10 m | - | |
| High-Resolution Audio | - | Yes |
| SOUND QUALITY | Erato RIO 3 | Huawei FreeBuds 4 |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.2 | Bluetooth 5.2 | Huawei FreeBuds 4 have a more advanced version of Bluetooth than Erato RIO 3. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | Hands-Free Profile (HFP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | SBC, AAC, aptX | SBC, AAC | |
| Active Noise Cancelling | - | Yes | Huawei FreeBuds 4 are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Sensitivity | 100 dB | - | |
| Impedance | 32 Ohm | - | |
| Diaphragm | 14.2 mm | 14.3 mm | Huawei FreeBuds 4 have a thicker diaphragm than Erato RIO 3. |
| MICROPHONE | Erato RIO 3 | Huawei FreeBuds 4 |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Microphone Operation Mode | Omni-directional | - | |
| Noise Cancelling | - | Yes | Huawei FreeBuds 4 microphone can cancel out ambient noise. |
| Sensitivity | -38 dB | - |
| REMOTE CONTROL | Erato RIO 3 | Huawei FreeBuds 4 |
|---|
| Controls | Volume, power on/off, answer/end, play/pause, next/previous track, pair mode | Swipe control |
|---|
| FEATURES | Erato RIO 3 | Huawei FreeBuds 4 |
|---|
| Sensors | - | Wear sensor |
|---|
| BATTERY AND CHARGING | Erato RIO 3 | Huawei FreeBuds 4 |
|---|
| Battery Type | Headphone battery rechargeable | Headphone battery rechargeable - lithium polymer | |
|---|---|---|---|
| Battery Capacity | 130 mAh | 30 mAh | Erato RIO 3 have a higher battery capacity than Huawei FreeBuds 4. |
| Battery Life | 8 hour(s) | 4 hour(s) | Erato RIO 3 lasts longer on a single charge than the Huawei FreeBuds 4. |
| Battery Life Details | Continuous playback: up to 6 hours Continuous talk: up to 8 hours |
Continuous playback (active noise-cancelling off): up to 4 hours Continuous playback (active noise-cancelling on): up to 2.7 hours Continuous playback (active noise-cancelling off) (with included charging case): up to 22 hours Continuous playback (active noise-cancelling on) (with included charging case): up to 14 hours Continuous talk (active noise-cancelling off): up to 2.3 hours Continuous talk (active noise-cancelling on): up to 2 hours |
|
| Charging Time | - | 1 hour(s) | |
| Included Qty | 2 | - |
| OTHERS | Erato RIO 3 | Huawei FreeBuds 4 |
|---|
| Included Accessories | - | USB-C charging cable, charging case (410 mAh) | |
|---|---|---|---|
| Compliant Standards | - | RoHS, halogen-free, IPX4 |
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