{"data":{"slug":"samsung-galaxy-buds2","type":"earbuds","brand":"Samsung","name":"Galaxy Buds2","aliases":["Galaxy Buds 2","Samsung Buds2","Galaxy Buds2 2021"],"release_date":"2021-08","url":"https://arkivo.dev/earbuds/samsung-galaxy-buds2","specs":{"series":"Galaxy Buds","model_numbers":["SM-R177NZKAEUA","SM-R177"],"gtins":null,"announce_date":"2021-08-11","status":null,"predecessor":"samsung-galaxy-buds-plus","successor":"samsung-galaxy-buds3","launch_price_usd":149.99,"launch_price_eur":null,"markets":["GB"],"colors":["Graphite","White","Olive","Lavender","Onyx"],"manufacturer_url":"https://www.samsung.com/uk/business/audio-sound/galaxy-buds/galaxy-buds2-graphite-sm-r177nzkaeua/","spec_sheet_url":"https://www.samsungmobilepress.com/articles/the-next-chapter-in-mobile-innovation-unfold-your-world-with-galaxy-z-fold3-5g-and-galaxy-z-flip3-5g","manual_url":"https://org.downloadcenter.samsung.com/downloadfile/ContentsFile.aspx?CDSite=UNI_UK&OriginYN=N&ModelType=N&ModelName=SM-R177&CttFileID=8255837&CDCttType=UM&VPath=UM%2F202108%2F20210813101112196%2FSM-R177_UM_EU_Eng_Rev.1.0_210809.pdf","eprel_registration_number":null,"warranty_years":1,"segment":"music","form_factor":"in_ear","bud_shape":"stemless","single_bud_use":"either","rgb_lighting":null,"drivers":[{"type":"dynamic","role":"woofer","size_mm":null,"count":1},{"type":"dynamic","role":"tweeter","size_mm":null,"count":1}],"driver_type":null,"driver_size_mm":null,"drivers_per_side":2,"driver_diaphragm_material":null,"frequency_response_hz":null,"impedance_ohm":null,"sensitivity_db":null,"sensitivity_reference":null,"max_sample_rate_khz":null,"max_bit_depth_bits":null,"adaptive_eq":null,"sound_personalization":null,"onboard_eq":null,"eq_bands":null,"eq_presets":["Normal","Bass boost","Soft","Dynamic","Clear","Treble boost"],"volume_limit_db":null,"virtual_surround":["Samsung 360 Audio with Dolby Head Tracking"],"head_tracking":true,"anc":true,"anc_type":"hybrid","anc_mic_count":4,"anc_adaptive":null,"anc_levels":null,"anc_claimed_attenuation_db":null,"transparency_mode":true,"transparency_adjustable":true,"adaptive_audio_mode":null,"conversation_detection":null,"wind_noise_reduction":true,"measured_frequency_response_notes":"Measured response has elevated sub-bass relative to the reviewer target. Bass can mask some midrange detail.","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":"Published ideal, office and windy microphone demos. Review reports keyboard noise pickup and weak wind handling.","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":null,"measured_battery_life_h":null,"measured_battery_life_with_case_h":null,"measured_charge_time_min":null,"measured_weight_g":null,"microphone_count":null,"microphone_count_total":6,"voice_pickup_sensor":true,"microphone_noise_reduction":"ai","voice_call_bandwidth":null,"mute_button":null,"sidetone":null,"chipset":"BES2500ZP","connection_types":["bluetooth"],"bluetooth_version":"5.2","bluetooth_codecs":["SBC","AAC","Samsung Scalable Codec"],"bluetooth_profiles":["A2DP","AVRCP","HFP"],"bluetooth_le_audio":null,"auracast":null,"multipoint":false,"multipoint_device_count":null,"multipoint_ldac":null,"paired_device_memory":null,"automatic_device_switching":true,"fast_pair":null,"audio_sharing":null,"wireless_range_m":null,"wireless_receiver":null,"receiver_connector":null,"simultaneous_2_4ghz_bluetooth":null,"low_latency_mode":true,"latency_claimed":null,"latency_claimed_min_ms":null,"compatible_platforms":["android","ios","windows","other"],"platform_connections":[{"platform":"android","connection":"bluetooth","microphone_works":true},{"platform":"ios","connection":"bluetooth","microphone_works":true},{"platform":"windows","connection":"bluetooth","microphone_works":null},{"platform":"other","connection":"bluetooth","microphone_works":null}],"feature_requirements":[{"feature":"Galaxy Wearable app","requirement":"Android 7.0 or later and at least 1.5 GB RAM for original Buds2 app support. No iOS companion app support."},{"feature":"Samsung connection popup","requirement":"Samsung Android 8.0 or later with SmartThings. This is not proof of Google Fast Pair or Microsoft Swift Pair."},{"feature":"Auto Switch","requirement":"Galaxy phones or tablets with One UI 3.1 or later and same Samsung Account. Supported Galaxy Watch4 or later route. App and device support varies."},{"feature":"360 Audio and head tracking","requirement":"Current earbud firmware and Samsung Galaxy phone or tablet with One UI 3.1 or later. App and content support varies. Added after launch."},{"feature":"Gaming mode","requirement":"Galaxy Wearable Labs and compatible Samsung Android host. No numeric latency promise."},{"feature":"Galaxy AI translation","requirement":"Paired compatible Samsung Galaxy phone processes Live Translate or Interpreter. Maker names S24 family as of February 2024. Account, software, language and network conditions apply."}],"official_license":null,"battery_capacity_mah":61,"battery_user_replaceable":null,"battery_life_claimed":[{"mode":"anc_on","codec":null,"spatial_audio":null,"with_case":false,"hours":5},{"mode":"anc_on","codec":null,"spatial_audio":null,"with_case":true,"hours":20},{"mode":"anc_off","codec":null,"spatial_audio":null,"with_case":false,"hours":7.5},{"mode":"anc_off","codec":null,"spatial_audio":null,"with_case":true,"hours":29},{"mode":"call","codec":null,"spatial_audio":null,"with_case":false,"hours":3.5},{"mode":"call","codec":null,"spatial_audio":null,"with_case":true,"hours":13},{"mode":"call","codec":null,"spatial_audio":null,"with_case":true,"hours":14}],"battery_life_max_h":7.5,"battery_life_anc_on_h":5,"battery_life_anc_off_h":7.5,"battery_life_with_case_h":29,"battery_life_with_case_anc_on_h":20,"talk_time_h":3.5,"charge_time_0_100_min":null,"charging_notes":null,"quick_charge_min":5,"quick_charge_playback_h":1,"case_battery_capacity_mah":472,"case_battery_user_replaceable":null,"charging_port":"usb_c","case_charge_time_min":null,"wireless_charging":true,"wireless_charging_standards":["qi"],"wireless_charging_max_w":null,"case_speaker":null,"case_screen":null,"case_audio_transmitter":null,"control_types":["touch","voice_commands"],"volume_control":"touch","gesture_controls":["Single, double and triple tap","Touch and hold","Double tap earbud edge in Labs"],"customizable_controls":true,"voice_assistant":["Bixby"],"wear_detection":true,"sensors":["Accelerometer","Gyroscope","Hall sensor","Proximity sensor","Touch sensor","Voice Pickup Unit"],"heart_rate_sensor":null,"skin_temperature":null,"hearing_aid_feature":null,"medical_clearances":null,"hearing_test":null,"loud_sound_reduction":null,"health_features":null,"ear_tip_sizes":["S","M","L"],"ear_tip_materials":["silicone"],"stabilizers":null,"fit_test":true,"ip_rating":["IPX2"],"case_ip_rating":null,"water_resistance_depth_m":null,"companion_app":"Galaxy Wearable (Android) and Galaxy Buds (Windows)","companion_app_platforms":["android","windows"],"firmware_updatable":true,"find_my_networks":["samsung_find"],"precision_finding":null,"live_translation":true,"weight_g":5,"dimensions_mm":{"width_mm":17,"height_mm":20.9,"depth_mm":21.1},"case_weight_g":41.2,"case_dimensions_mm":{"width_mm":50,"height_mm":27.8,"depth_mm":50.2},"hi_res_audio":null,"communication_certifications":null,"fcc_ids":null,"other_certifications":null,"in_the_box":["Galaxy Buds2 earbuds","Charging case","Ear tips in S, M and L","Quick Start Guide","USB-C charging cable"],"cables_included":[{"type":"USB-C charging cable","length_m":null,"count":1}]},"variants":[],"sources":[{"url":"https://searchapi.samsung.com/v6/front/b2c/product/spec/detail?siteCode=uk&modelList=SM-R177NZKAEUA&specAnnotationYN=Y","kind":"manufacturer_page","accessed":"2026-10-05","fields":["microphone_count_total","anc","transparency_mode","bluetooth_version","bluetooth_profiles","sensors","weight_g","case_weight_g","dimensions_mm","case_dimensions_mm","battery_capacity_mah","case_battery_capacity_mah","ear_tip_sizes","in_the_box"],"notes":{"microphone_count_total":"Exact UK Graphite model row gives six physical microphones. Voice Pickup Unit is a vibration sensor, not an extra microphone. Voice-specific physical count is omitted because exact participation of the inner ANC capsule in calls is not established.","dimensions_mm":"Exact HxWxD labels retained. One earbud, not pair.","case_dimensions_mm":"Exact HxWxD labels retained. Case mass is empty-case mass, independently confirmed by teardown.","battery_capacity_mah":"Maker typical capacity is 61 mAh per bud. Exact teardown cell is rated 58 mAh. These are different capacity scopes.","case_battery_capacity_mah":"Maker typical case-cell capacity is 472 mAh. Teardown also prints 472 mAh on the case battery label. Neither is USB output capacity."}},{"url":"https://www.samsung.com/uk/business/audio-sound/galaxy-buds/galaxy-buds2-graphite-sm-r177nzkaeua/","kind":"manufacturer_page","accessed":"2026-10-05","fields":["manufacturer_url","series","model_numbers","markets","segment","form_factor","bud_shape","drivers","colors","microphone_noise_reduction","wind_noise_reduction","ear_tip_materials","fit_test","automatic_device_switching","virtual_surround","head_tracking","live_translation","battery_life_claimed","feature_requirements"],"notes":{"model_numbers":"Exact 2021 UK Graphite SM-R177NZKAEUA. Shared SM-R177 is established by its original EU manual. Buds2 Pro, Buds3 and FE are separate models.","colors":"Four original finishes plus current Onyx on the maker page. Same generation. Reference photo remains Graphite.","microphone_noise_reduction":"Maker calls its call noise filtering machine-learning based. Marketing three-mic call-system wording does not establish every capsule participating in call pickup.","wind_noise_reduction":"Documented low-protrusion physical design reduces wind disruption. This is separate from selectable ANC processing.","battery_life_claimed":"Five hours with ANC plus 15 additional hours from the case means 20 total, not 15 total. Preproduction Buds2 on a recently released Galaxy smartphone at default ANC-on settings. Exact host model, codec, volume and firmware are unstated.","head_tracking":"Current exact maker page names Dolby Head Tracking with 360 Audio. One UI 3.1 or later, supported apps and content. Added in 2022, not a launch feature.","live_translation":"Phone-processed Galaxy AI Live Translate and Interpreter. Current page names S24 family as of February 2024, account and language requirements. Live Translate requires network and Samsung Phone app."}},{"url":"https://www.samsungmobilepress.com/articles/the-next-chapter-in-mobile-innovation-unfold-your-world-with-galaxy-z-fold3-5g-and-galaxy-z-flip3-5g","kind":"press_release","accessed":"2026-10-05","fields":["spec_sheet_url","announce_date","drivers","bluetooth_codecs","battery_life_claimed","quick_charge_min","quick_charge_playback_h","wireless_charging_standards","battery_capacity_mah","case_battery_capacity_mah"],"notes":{"spec_sheet_url":"Original maker Product Specifications table read in full. No standalone model-specific maker PDF datasheet found.","drivers":"Two-way woofer and tweeter. Current maker page explicitly says dynamic. Teardown confirms two separate dynamic transducers. Diameter unstated.","bluetooth_codecs":"Original table explicitly Scalable, AAC and SBC. Not the later 24-bit Samsung Seamless Codec. No LC3, LE Audio or Auracast inferred from Bluetooth 5.2 or chipset capability.","battery_life_claimed":"Music 5/20 hours ANC on and 7.5/29 ANC off. Calls 3.5 hours per charge in both ANC states. Case-inclusive call totals are 13 with ANC and 14 without ANC. The call table mode does not encode ANC, so conditions are kept here.","quick_charge_playback_h":"One hour after five minutes of charging starts with earbuds below 30 percent. Original footnote explicitly measures playback with ANC off. Usage and recharge count affect duration. Codec, volume, host and firmware are unstated."}},{"url":"https://news.samsung.com/us/galaxy-z-fold3-5g-galaxy-z-flip3-5g-unpacked-2021-next-mobile-innovation/","kind":"press_release","accessed":"2026-10-05","fields":["launch_price_usd","release_date"],"notes":{"launch_price_usd":"Original US maker pricing gives 149.99 USD for standard Buds2. US family launch price, not a conversion of UK pricing.","release_date":"Original US maker page updated August 26, 2021 explicitly says available now, while its dated header says August 27. Stored at August month precision without a worldwide first-day claim. No inaccessible Canadian retail claim is retained."}},{"url":"https://org.downloadcenter.samsung.com/downloadfile/ContentsFile.aspx?CDSite=UNI_UK&OriginYN=N&ModelType=N&ModelName=SM-R177&CttFileID=8255837&CDCttType=UM&VPath=UM%2F202108%2F20210813101112196%2FSM-R177_UM_EU_Eng_Rev.1.0_210809.pdf","kind":"manual","accessed":"2026-10-05","fields":["manual_url","charging_port","wireless_charging","connection_types","control_types","volume_control","gesture_controls","customizable_controls","voice_assistant","single_bud_use","low_latency_mode","companion_app","companion_app_platforms","firmware_updatable","fit_test","cables_included","automatic_device_switching","feature_requirements","transparency_adjustable"],"notes":{"manual_url":"Original EU English August 2021 Rev.1.0, 45-page PDF with numbered pages 1 to 44 and copyright page. Charging layout page 7 visually inspected. English section of the separately linked September 2021 Hearable Safety Information was also read. Generic safety text does not prove a model-specific FCC ID or IP rating.","cables_included":"Page 9 names supplied USB Type-C cable and separately sold chargers. Exact UK API lists one USB cable. Host-end connector and length are unstated, so CN teardown package details are not borrowed.","customizable_controls":"Pages 24 and 25 touch-and-hold can select noise control, Bixby or volume. Volume remaps both sides together. Page 29 repeats left down and right up.","voice_assistant":"Page 27 touch-and-hold or Hi Bixby on compatible Bixby-enabled host. Language and region availability vary.","single_bud_use":"Page 18 describes mono with one connected bud. Page 36 accessibility enables ANC with one earbud despite default both-bud restriction.","low_latency_mode":"Page 36 Gaming mode in Labs requires Samsung Android device. No specific milliseconds stated.","automatic_device_switching":"Pages 33 and 35 automatic call switching and seamless connection. Account route is separate from concurrent generic multipoint.","transparency_adjustable":"Exact original manual documents adjustment of ambient sound volume. These are transparency settings, not ANC strength levels."}},{"url":"https://doc.samsungmobile.com/SM-R177/019815210824/eng.html","kind":"manufacturer_page","accessed":"2026-10-05","fields":["firmware_updatable","head_tracking","virtual_surround","gesture_controls","feature_requirements"],"notes":{"head_tracking":"Model-specific R177XXU0AVC8 dated April 4, 2022 adds 360 Audio on One UI 3.1 or higher. Current product page separately proves head tracking.","gesture_controls":"R177XXU0AUH2 dated August 24, 2021 adds double-tap earbud edge in Labs, ambient during calls and one-earbud noise control. Not copied from a Pro or FE guide.","firmware_updatable":"Exact SM-R177 firmware history lists releases through July 24, 2025. No future update promise, LC3 or Auracast feature inferred."}},{"url":"https://www.samsung.com/us/support/answer/ANS10001319/","kind":"manufacturer_page","accessed":"2026-10-05","fields":["compatible_platforms","platform_connections","multipoint","companion_app_platforms","low_latency_mode"],"notes":{"platform_connections":"Exact supported-model sections include Buds2. Android and iOS support calls and music. Windows PC pairing and Samsung TV and watch audio routes are documented. Other means compatible Samsung TV or Galaxy watch. PC/TV microphone support is unstated. No gaming console route inferred.","multipoint":"Maker explicitly states earbuds cannot connect to multiple devices simultaneously. Auto Switch is same-account routing.","companion_app_platforms":"Buds2 is excluded from the iOS Buds app despite iPhone Bluetooth audio and call support."}},{"url":"https://www.samsung.com/us/support/answer/ANS10001316/","kind":"manufacturer_page","accessed":"2026-10-05","fields":["firmware_updatable","companion_app","companion_app_platforms"],"notes":{"companion_app":"Current exact eligibility includes Buds2 in Galaxy Buds PC app from Microsoft Store. Original Galaxy Wearable Android route and Windows route are distinct. Older Buds Manager for Mac belongs to different models.","firmware_updatable":"Current manufacturer instructions explicitly update Buds2 through the Windows PC app. No iOS updater or future support promise."}},{"url":"https://www.samsung.com/uk/apps/smartthings-find/","kind":"manufacturer_page","accessed":"2026-10-05","fields":["find_my_networks"],"notes":{"find_my_networks":"Offline-finding list explicitly includes Buds2. Samsung Account, compatible Galaxy host and enabled offline finding required. Buds must have power. No UWB precision-finding capability inferred."}},{"url":"https://www.samsung.com/uk/support/warranty/","kind":"manufacturer_page","accessed":"2026-10-05","fields":["warranty_years"],"notes":{"warranty_years":"UK Galaxy Buds and wireless headphones category specifies 12 months. Statutory consumer rights and optional extended coverage are separate."}},{"url":"https://www.52audio.com/archives/93500.html","kind":"review_site","accessed":"2026-10-05","fields":["chipset","voice_pickup_sensor","drivers","anc_type","anc_mic_count","case_battery_capacity_mah"],"notes":{"chipset":"Exact SM-R177 teardown identifies BES2500ZP earbud audio SoC. Case MUA01 and earbud power-management MUB01 are separate. Generic chip LC3 support does not prove shipping earbud LE Audio.","drivers":"Separate woofer and tweeter dynamic transducers. J1617G module length about 6.2 mm and thickness 5.89 mm are not circular driver diameters, so not stored as size_mm.","anc_type":"Actual external feedforward and internal feedback microphone roles explicitly identified. Two ANC microphones per bud means four across the pair. Separate dedicated call mic and bone sensor are not added to ANC count.","voice_pickup_sensor":"Actual ST LIS25BATR dedicated speech-vibration sensor. Teardown explicitly describes bone-vibration voice pickup and call-noise suppression, not merely an unspecified accelerometer.","case_battery_capacity_mah":"Exact case cell EB-BR190ABY label: 472 mAh and 1.81 Wh at 3.85 V. Reviewer calls printed capacity rated while maker calls the same numeric case capacity typical. No conversion or USB output-capacity substitution."}},{"url":"https://www.soundguys.com/samsung-galaxy-buds-2-60669/","kind":"review_site","accessed":"2026-10-05","fields":["eq_presets","wear_detection","ip_rating","measured_frequency_response_notes","measured_microphone_notes"],"notes":{"measured_frequency_response_notes":"Exact published lab curve and prose. Firmware, codec, target revision and original fixture are unstated. No graph points converted into numeric dB. Numeric measured runtime is omitted because this review and FE comparison give 5 hours 3 minutes while the Pro comparison gives 5 hours 9 minutes with ANC, without resolving the difference.","measured_microphone_notes":"Only ideal, office and windy demos. Exact recording host, firmware and codec are unstated. No subjective votes converted into voice score.","wear_detection":"Review says removal pauses playback but reinsertion does not automatically resume. User must tap. In-ear detection does not guarantee AirPods-like resume.","ip_rating":"Exact Buds2 earbuds IPX2. No charging-case IP rating inferred.","eq_presets":"Six named presets. Source explicitly excludes custom EQ. Noise modes and fit test are separate."}},{"url":"https://www.soundguys.com/samsung-galaxy-buds-pro-vs-samsung-galaxy-buds-2-61210/","kind":"review_site","accessed":"2026-10-05","fields":["measured_frequency_response_notes"],"notes":{"measured_frequency_response_notes":"Exact Buds2 curve and default-response discussion corroborate relative bass emphasis and midrange masking. Battery paragraph gives 5 hours 9 minutes with ANC at constant 75 dB SPL, conflicting with standalone review and FE comparison at 5 hours 3 minutes. Numeric measured runtime remains omitted. Sibling Buds Pro attenuation and driver details are excluded."}},{"url":"https://www.rtings.com/headphones/reviews/samsung/galaxy-buds-plus-truly-wireless","kind":"measurement","accessed":"2026-10-23","fields":["predecessor"],"notes":{"predecessor":"A notice on the RTINGS Galaxy Buds+ review says these headphones were replaced by the Samsung Galaxy Buds2."}},{"url":"https://www.rtings.com/headphones/reviews/samsung/galaxy-buds2-truly-wireless","kind":"measurement","accessed":"2026-10-23","fields":["predecessor"],"notes":{"predecessor":"RTINGS says the Galaxy Buds2 are the next generation of the Galaxy Buds+."}},{"url":"https://www.rtings.com/headphones/reviews/samsung/galaxy-buds3-truly-wireless","kind":"measurement","accessed":"2026-10-23","fields":["successor"],"notes":{"successor":"RTINGS says the Galaxy Buds3 are the third generation of Galaxy earbuds, following the Galaxy Buds2."}}],"fields_filled":79,"updated":"2026-10-23"},"meta":{"api_version":"1","docs":"https://arkivo.dev/api"}}