{"data":{"slug":"oneplus-buds-4","type":"earbuds","brand":"OnePlus","name":"Buds 4","aliases":["OnePlus Buds4","Buds4"],"release_date":"2025-07","url":"https://arkivo.dev/earbuds/oneplus-buds-4","specs":{"series":null,"model_numbers":["E513A"],"gtins":null,"announce_date":null,"status":"available","predecessor":"oneplus-buds-3","successor":null,"launch_price_usd":null,"launch_price_eur":null,"markets":null,"colors":["Storm Gray","Zen Green"],"manufacturer_url":"https://www.oneplus.com/us/oneplus-buds-4","spec_sheet_url":"https://www.oneplus.com/content/dam/oneplus/2025/specs/buds4/parameter-na-buds4-0701.xlsx","manual_url":"https://media.tatacroma.com/Croma%20Assets/Wearable/Wearable%20Devices/User%20Manual/316448_User%20Manual?updatedAt=1754049357493","eprel_registration_number":null,"warranty_years":null,"segment":"music","form_factor":"in_ear","bud_shape":"stem","single_bud_use":null,"rgb_lighting":null,"drivers":[{"type":null,"role":"woofer","size_mm":11,"count":1},{"type":null,"role":"tweeter","size_mm":6,"count":1}],"driver_type":null,"driver_size_mm":11,"drivers_per_side":2,"driver_diaphragm_material":"Woofer: 30-layer ceramic-metal diaphragm. Tweeter: flat diaphragm.","frequency_response_hz":{"min_hz":15,"max_hz":40000},"impedance_ohm":null,"sensitivity_db":null,"sensitivity_reference":null,"max_sample_rate_khz":192,"max_bit_depth_bits":24,"adaptive_eq":null,"sound_personalization":true,"onboard_eq":null,"eq_bands":6,"eq_presets":["Balanced","Serenade","Bass Mode"],"volume_limit_db":null,"virtual_surround":["OnePlus 3D Audio"],"head_tracking":null,"anc":true,"anc_type":"hybrid","anc_mic_count":4,"anc_adaptive":true,"anc_levels":null,"anc_claimed_attenuation_db":55,"transparency_mode":true,"transparency_adjustable":null,"adaptive_audio_mode":null,"conversation_detection":null,"wind_noise_reduction":null,"measured_frequency_response_notes":"The measured default response has increased sub-bass below 100 Hz and otherwise closely follows the SoundGuys Headphone Preference Curve.","measured_bass_amount_db":null,"measured_treble_amount_db":null,"measured_target_deviation_db":null,"measured_response_consistency_db":null,"measured_thd_pct":null,"measured_leakage_db_spl":null,"measured_noise_isolation":null,"measured_attenuation_overall_db":null,"measured_attenuation_passive_db":null,"measured_microphone_notes":"Speech remains understandable in the published voice samples across several noise environments.","measured_microphone_lfe_hz":null,"measured_microphone_hfe_hz":null,"measured_microphone_noise_handling_db":null,"measured_latency":null,"measured_latency_bluetooth_ms":null,"measured_latency_2_4ghz_ms":null,"measured_latency_game_mode_ms":null,"measured_battery_life":[{"anc":true,"codec":null,"hours":5.516666666666667}],"measured_battery_life_h":5.516666666666667,"measured_battery_life_with_case_h":null,"measured_charge_time_min":null,"measured_weight_g":null,"microphone_count":6,"microphone_count_total":6,"voice_pickup_sensor":null,"microphone_noise_reduction":"ai","voice_call_bandwidth":null,"mute_button":null,"sidetone":null,"chipset":null,"connection_types":["bluetooth"],"bluetooth_version":"5.4","bluetooth_codecs":["LHDC","AAC","SBC"],"bluetooth_profiles":["HFP","A2DP","AVRCP"],"bluetooth_le_audio":null,"auracast":null,"multipoint":true,"multipoint_device_count":2,"multipoint_ldac":null,"paired_device_memory":null,"automatic_device_switching":null,"fast_pair":["google_fast_pair"],"audio_sharing":null,"wireless_range_m":10,"wireless_receiver":null,"receiver_connector":null,"simultaneous_2_4ghz_bluetooth":null,"low_latency_mode":true,"latency_claimed":[{"connection":"bluetooth","mode":"Low latency mode","latency_ms":47}],"latency_claimed_min_ms":47,"compatible_platforms":["android","ios"],"platform_connections":[{"platform":"android","connection":"bluetooth","microphone_works":null},{"platform":"ios","connection":"bluetooth","microphone_works":null}],"feature_requirements":[{"feature":"LHDC 5.0 high-resolution playback","requirement":"Compatible Android device with LHDC 5.0. OnePlus Android 12 or later uses Earbuds Function. Other Android 7.0 or later devices use HeyMelody. Not supported on iOS."},{"feature":"OnePlus 3D Audio and Golden Sound","requirement":"OnePlus Android 12 or later uses Earbuds Function. Other Android 7.0 or later and iOS devices use HeyMelody."},{"feature":"Steady Connect","requirement":"Select OnePlus phones with OxygenOS 15.0.0 or later."},{"feature":"AI Translation","requirement":"Select OnePlus devices with OxygenOS 15.0.1 or later. Supported languages are listed in the app."},{"feature":"Voice assistant shortcut","requirement":"Enable in OnePlus phone Settings or HeyMelody. Available assistant functions depend on the smartphone and its installed assistant."},{"feature":"Single-tap playback control","requirement":"Disabled by default. Enable manually in OnePlus phone Settings or HeyMelody."},{"feature":"47 ms low-latency mode","requirement":"Automatically enabled for OnePlus phone users. Other brands require manual activation in HeyMelody."}],"official_license":null,"battery_capacity_mah":62,"battery_user_replaceable":false,"battery_life_claimed":[{"mode":"anc_off","codec":"AAC","spatial_audio":null,"with_case":false,"hours":11},{"mode":"anc_off","codec":"AAC","spatial_audio":null,"with_case":true,"hours":45},{"mode":"anc_on","codec":"AAC","spatial_audio":null,"with_case":false,"hours":6},{"mode":"anc_on","codec":"AAC","spatial_audio":null,"with_case":true,"hours":24},{"mode":"anc_off","codec":"LHDC","spatial_audio":null,"with_case":false,"hours":9},{"mode":"anc_off","codec":"LHDC","spatial_audio":null,"with_case":true,"hours":37},{"mode":"anc_on","codec":"LHDC","spatial_audio":null,"with_case":false,"hours":5.5},{"mode":"anc_on","codec":"LHDC","spatial_audio":null,"with_case":true,"hours":22},{"mode":"call","codec":null,"spatial_audio":null,"with_case":false,"hours":6},{"mode":"call","codec":null,"spatial_audio":null,"with_case":true,"hours":24},{"mode":"call","codec":null,"spatial_audio":null,"with_case":false,"hours":4},{"mode":"call","codec":null,"spatial_audio":null,"with_case":true,"hours":17}],"battery_life_max_h":11,"battery_life_anc_on_h":6,"battery_life_anc_off_h":11,"battery_life_with_case_h":45,"battery_life_with_case_anc_on_h":24,"talk_time_h":6,"charge_time_0_100_min":50,"charging_notes":null,"quick_charge_min":10,"quick_charge_playback_h":3.5,"case_battery_capacity_mah":530,"case_battery_user_replaceable":false,"charging_port":"usb_c","case_charge_time_min":null,"wireless_charging":false,"wireless_charging_standards":null,"wireless_charging_max_w":null,"case_speaker":null,"case_screen":null,"case_audio_transmitter":null,"control_types":["touch","swipe"],"volume_control":"swipe","gesture_controls":["Single tap","Double tap","Triple tap","Touch and hold for one second","Slide up and down"],"customizable_controls":true,"voice_assistant":["Google Gemini","Google Assistant","Apple Siri"],"wear_detection":null,"sensors":null,"heart_rate_sensor":null,"skin_temperature":null,"hearing_aid_feature":null,"medical_clearances":null,"hearing_test":true,"loud_sound_reduction":null,"health_features":null,"ear_tip_sizes":["S","M","L"],"ear_tip_materials":["silicone"],"stabilizers":null,"fit_test":true,"ip_rating":["IP55"],"case_ip_rating":null,"water_resistance_depth_m":null,"companion_app":"HeyMelody and OnePlus Wireless Earphones","companion_app_platforms":["android","ios"],"firmware_updatable":true,"find_my_networks":null,"precision_finding":null,"live_translation":true,"weight_g":4.73,"dimensions_mm":null,"case_weight_g":null,"case_dimensions_mm":null,"hi_res_audio":["hi_res_audio_wireless"],"communication_certifications":null,"fcc_ids":null,"other_certifications":null,"in_the_box":["OnePlus Buds 4 (one pair)","OnePlus Buds 4 Charging Case","Type-C Charging Cable","Ear Tips (S, M, L pairs, M pre-installed)","User Manual and Safety and Warranty"],"cables_included":[{"type":"USB-A to USB-C charging cable","length_m":null,"count":1}]},"variants":[],"sources":[{"url":"https://www.oneplus.com/us/oneplus-buds-4/specs","kind":"manufacturer_page","accessed":"2026-10-08","fields":["manufacturer_url","spec_sheet_url","colors","status","drivers","frequency_response_hz","microphone_count","microphone_count_total","microphone_noise_reduction","anc","anc_adaptive","anc_claimed_attenuation_db","transparency_mode","connection_types","bluetooth_version","bluetooth_codecs","bluetooth_profiles","multipoint","multipoint_device_count","fast_pair","wireless_range_m","battery_capacity_mah","case_battery_capacity_mah","battery_life_claimed","charge_time_0_100_min","quick_charge_min","quick_charge_playback_h","charging_port","ip_rating","firmware_updatable","ear_tip_sizes","in_the_box","weight_g"],"notes":{"spec_sheet_url":"Public maker workbook linked by the page. Rendered specifications select sheet P000001. The workbook also includes unselected P000002 with differing case mass and call-profile labels, so no exact colour-dependent case mass is inferred.","drivers":"Maker explicitly publishes one 11 mm woofer and one 6 mm tweeter per earbud. Transducer technology is not explicitly stated in the selected source, so row type and driver_type remain unknown.","frequency_response_hz":"Maker publishes acoustic Frequency Response of 15 Hz to 40 kHz. Test method and mode are not stated. LHDC sample rate is separate.","microphone_count":"Maker states three microphones per side and three-microphone AI calls. Six physical microphones across the pair, not three across the pair.","microphone_count_total":"Maker three microphones per side. The product page labels feed-forward, talk and feed-back roles.","anc_claimed_attenuation_db":"Up to 55 dB from OnePlus Test Laboratory. The separate maximum cancellation bandwidth is 5500 Hz. This is not an independently measured overall attenuation.","bluetooth_codecs":"The source names LHDC 5.0, normalized to the schema codec name LHDC. AAC and SBC are also named. LHDC requires a compatible host.","battery_capacity_mah":"Maker unqualified cell capacity of one earbud. Typical versus rated is not identified.","case_battery_capacity_mah":"Maker unqualified charging case cell capacity. It is separate from one-bud capacity.","battery_life_claimed":"All rows use 50% volume. AAC playback claims: ANC off 11 h buds / 45 h total and ANC on 6 h / 24 h. LHDC playback: off 9 h / 37 h and on 5.5 h / 22 h. Call rows 6 h / 24 h are ANC off, and 4 h / 17 h are ANC on. The maker labels those calls HFP, a profile rather than an actual speech codec, so codec is omitted for call rows. The call mode cannot encode ANC, so those conditions remain here. with_case includes the initial earbud charge.","charge_time_0_100_min":"Maker specifies earbuds-only charge time about 50 minutes. The separate about-80-minute result includes both earbuds and case, so it is not stored as case_charge_time_min.","quick_charge_playback_h":"Maker earbuds-only claim is 3.5 hours after ten minutes. Conditions ANC off, AAC, 50% volume. The eleven-hour quick-charge headline includes case recharges and is not stored here.","weight_g":"Maker single-earbud mass 4.73 ± 0.2 g. Empty-case mass is omitted because the linked workbook has 39.97 g and 39.57 g on differently keyed sheets without an exact colour/configuration bridge. Unlabelled dimension tuples do not establish axes."}},{"url":"https://www.oneplus.com/us/oneplus-buds-4","kind":"manufacturer_page","accessed":"2026-10-08","fields":["segment","max_sample_rate_khz","max_bit_depth_bits","driver_diaphragm_material","sound_personalization","hearing_test","eq_bands","eq_presets","virtual_surround","anc_type","anc_mic_count","low_latency_mode","latency_claimed","control_types","volume_control","customizable_controls","live_translation","voice_assistant","hi_res_audio","feature_requirements"],"notes":{"max_sample_rate_khz":"Maker LHDC 5.0 high-resolution claim: up to 192 kHz / 24-bit, up to 1 Mbps. It does not establish lossless transmission. Compatible LHDC Android host required. iOS native Bluetooth does not support LHDC.","max_bit_depth_bits":"LHDC 5.0 claim with the same compatible-host and app restrictions as the sample rate.","driver_diaphragm_material":"Maker illustrated driver descriptions explicitly assign ceramic-metal diaphragm to the woofer and flat diaphragm to the tweeter. Flat does not by itself establish planar-magnetic technology.","anc_type":"Maker identifies feed-forward and feed-back microphone roles in each earbud. Both microphone placements establish hybrid playback ANC, distinct from its adaptive algorithm.","anc_mic_count":"Two ANC roles per earbud, feed-forward and feed-back, total four across the pair. The separate talk microphone is not added to this count.","latency_claimed":"Maker laboratory claim 47 ms in its low-latency feature. Host, codec and firmware are not specified. It is not an independently measured latency or a universal guarantee.","virtual_surround":"Static OnePlus 3D Audio with the published Android/iOS app requirements. Head tracking is not inferred.","hi_res_audio":"Maker displays Hi-Res Audio Wireless branding and describes compatible LHDC 5.0 high-resolution playback.","feature_requirements":"Exact footnotes 1, 5, 6, 7, 8, 9 and 11 of the US maker product page. These limit advanced features, not ordinary Bluetooth audio compatibility."}},{"url":"https://media.tatacroma.com/Croma%20Assets/Wearable/Wearable%20Devices/User%20Manual/316448_User%20Manual?updatedAt=1754049357493","kind":"manual","accessed":"2026-10-08","fields":["manual_url","form_factor","bud_shape","fit_test","companion_app","companion_app_platforms","compatible_platforms","platform_connections","gesture_controls"],"notes":{"manual_url":"Maker-authored original two-page English/Hindi user guide hosted by the retailer. Its English page was read in full. Global model identity is separately confirmed by the original OnePlus safety document E513A.","companion_app":"Original guide names built-in Wireless Earphones / OnePlus Buds settings on OnePlus phones and HeyMelody for other Android/iOS phones. Current US footnotes take precedence for advanced feature OS requirements.","gesture_controls":"Original English touch table. Single-tap playback is disabled by default and must be enabled in app settings.","platform_connections":"Original guide explicitly documents OnePlus Android and other Android/iOS pairing. No USB audio route is assigned to the charging case."}},{"url":"https://www.oneplus.com/content/dam/oneplus/2024/eu/store/safety_guide/OnePlus_Buds_4_Safety_Guide.pdf","kind":"manual","accessed":"2026-10-08","fields":["model_numbers","ear_tip_materials","battery_user_replaceable","case_battery_user_replaceable"],"notes":{"model_numbers":"Original maker Safety and Warranty booklet, English page 2, explicitly names OnePlus Buds 4 and E513A. Regulatory radio power and SAR do not establish audio specifications.","battery_user_replaceable":"Original safety instructions explicitly prohibit replacing or disassembling the battery. No manufacturer-approved normal replacement procedure was found.","case_battery_user_replaceable":"Same original safety rule covers the device and accessories, including charging case batteries. Service repair and disposal are not routine user replacement."}},{"url":"https://www.soundguys.com/oneplus-buds-4-review-142159/","kind":"measurement","accessed":"2026-10-08","fields":["wireless_charging","measured_battery_life","measured_frequency_response_notes","measured_microphone_notes","cables_included"],"notes":{"measured_battery_life":"Storm Gray reviewer unit supplied by the maker and tested for two weeks. ANC-on playback lasted 5 h 31 min, stored as 331/60 hours. Firmware, codec and numeric test level are not stated in the product review and remain unknown. This is one earbud charge, not case-inclusive runtime.","measured_frequency_response_notes":"Written Objective Measurements section describes the measured default curve and explicitly names its target. No numeric graph interpolation or MDAQS score is stored in acoustic deviation fields.","measured_microphone_notes":"Reviewer microphone demonstrations and written conclusions, not a maker call-noise claim. Firmware and codec are not specified.","wireless_charging":"Reviewer explicitly states the USB-C case does not support wireless charging.","cables_included":"Reviewer explicitly identifies the supplied cable as USB-A to USB-C. Length is not stated."}},{"url":"https://www.androidcentral.com/accessories/earbuds/oneplus-buds-4-review","kind":"review_site","accessed":"2026-10-08","fields":["release_date"],"notes":{"release_date":"Exact-model review states official US purchase availability from OnePlus on July 8, 2025, with wider US retailers in August. Stored July is the selected US reference release month. Earlier China-model availability is not established here. Review pricing is not stored as maker launch MSRP."}},{"url":"https://www.techradar.com/audio/earbuds-airpods/oneplus-buds-4-review","kind":"review_site","accessed":"2026-10-23","fields":["predecessor"],"notes":{"predecessor":"TechRadar's review says the OnePlus Buds 4 are the successors to last year's OnePlus Buds 3."}}],"fields_filled":82,"updated":"2026-10-23"},"meta":{"api_version":"1","docs":"https://arkivo.dev/api"}}