Oppo ENCO Free vs Sony WI-XB400 – Detailed Specs Comparison (2026)

ALERT

Oppo ENCO Free
Rs.4,990.00

Sony WI-XB400
Rs.4,990.00

Brand	Oppo	Sony
Model No	ENCO Free	WI-XB400
Wired / Wireless	Wireless Headphone Specification	Wireless Headphone Specification
Headphone Type	In Ear	Neckband

Magnet Type	Dynamic	Neodymium
Driver Diameter	13.5 mm	12 mm
Impedance	NA	NA
Sensitivity	120dB	NA
Frequency Response	16 Hz ~ 20000 kHz	20 Hz - 20000 Hz
Maximum Power Input	NA	5 V DC
Noise Cancelling	AI Uplink	NA

Wireless Technology	Bluetooth	Bluetooth
Bluetooth Version	5.0	5.0
Compatible Profiles	All Bluetooth Devices	All Bluetooth Devices
Supported Codecs	LHDC, AAC, SBC	A2DP, AVRCP, HFP, HSP, SBC, AAC
Battery Type	Lthium-ion Battery	lithium-ion
Bluetooth Range	10 Meters	10 Meters Class 2
Battery Life	25 Hours	15 Hours
Charging Time	5 Hours	1.5 Hours

Available Colors	Black, White, Pink	Black, Blue
Connector Plating	NA	NA
Cable	USB Type-C Charging Cable	USB Type-C
Weight	48.2 gm	21 gm
Other Features	12 Month Manufacturer Warranty. It delivers professional audio quality. Intuitive controls, right at your fingertips. Enco Free equipped with IPX4 water resistance which protects against everyday splashes and spills. Enjoy up to 25 hours of music playback or 15 hours of call time when you carry your headphones with their charging case. AI uplink noise cancellation during calls: Industry leading AI uplink noise cancellation and dual microphone beam-forming technology, calls sound clear even in noisy environment.	EXTRA BASSâ„¢ for deep, punchy sound BluetoothÂ® wireless technology for unrestricted movement Up to 15 hours of battery life and quick charging Easy hands-free calling and voice assistant commands with microphone Listen in comfort, anywhere, anytime Enjoy up to 15 hours of non-stop music Power up with quick charging Comfortable neckband style with magnetic buds for easy carrying
	Compare Oppo ENCO Free with: Sony WH-CH510 Sennheiser CX 150BT boAt TRebel Rockerz 295 v2 boAt Airdopes 301 boAt Airdopes Prime 512	Compare Sony WI-XB400 with: Sony WH-CH510 Sennheiser CX 150BT boAt TRebel Rockerz 295 v2 boAt Airdopes 301 boAt Airdopes Prime 512

Key Differences

Sony WI-XB400 and Oppo ENCO Free offer different noise cancellation capabilities (NA vs AI Uplink), which can impact how effectively they block external noise. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. The frequency response differs (20 Hz - 20000 Hz vs 16 Hz ~ 20000 kHz), which can influence how well the headphones reproduce lows, mids, and highs. If you're comparing Sony WI-XB400 and Oppo ENCO Free, both models offer a strong combination of sound performance, comfort, and modern wireless features. In general, both options are suitable for everyday use including music, calls, travel, and work-from-home scenarios. Battery life varies between the two (15 Hours vs 25 Hours), which affects how long you can use them on a single charge. The driver size differs between the two (12 mm vs 13.5 mm), which can influence sound depth, bass response, and overall audio clarity. There is a noticeable difference in weight (21 gm vs 48.2 gm), which may affect comfort during extended use.

Verdict: Both models are competitive, and your decision should be based on your usage needs and preferred features.

Top Differences

Battery Life: 15 Hours vs 25 Hours
Noise Cancelling: NA vs AI Uplink
Driver Size: 12 mm vs 13.5 mm
Weight: 21 gm vs 48.2 gm

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