Compare TWS Earbuds Side-by-Side
King Lucky i121 AI Tranlation Sajawass BX31
In-Depth Comparison
Experience the freedom of wireless sound with these sleek open-ear ai translation earbuds, now available in matte black. Featuring Bluetooth 6.0 and Bluetooth 5.4, enjoy a robust 10-meter range and seamless multi-device pairing. With dynamic drivers and support for SBC, AAC, and aptX codecs, you get balanced sound with punchy bass and clear mid-range. Designed for active lifestyles, they boast environmental noise cancellation, a water resistance rating of IPX5, and a lightweight 5.3 grams per earbud. With up to 50 hours of total playback, quick 10-minute charging, and automatic ear detection, these earbuds are perfect for workouts, gaming, or daily commuting. Bonus: a 3-month game pass and pre-installed software make this a must-have for tech lovers! The latest Sajawass BX31 in wireless audio with these sleek in-ear earbuds. Featuring Bluetooth 5.3 for a stable connection up to 10 meters and quick pairing, they deliver vivid sound with powerful bass and clear treble. The 13mm drivers and ENC noise reduction ensure crystal-clear calls, while the ergonomic ear hooks guarantee a secure fit during workouts. With an impressive 75 hours of total playback thanks to the charging case, plus over 8 hours on a single charge, you'll enjoy all-day music. Bonus perks include a 3-month game pass, pre-installed music software, and a compact case with LED display—perfect for active lifestyles and entertainment on the go. In this comparison, we look at specs, features, and price to help you compare which is better. Let’s see key highlights below.
Quick Comparison (Top 5 Features)
| Key Feature | King Lucky i121 AI Tranlation | Sajawass BX31 |
|---|---|---|
| Battery Life | Up to 50 hours with charging case; 6 hours per single charge | 75 hours total with charging case; over 8 hours playback per charge |
| Water Rating | IPX5 waterproof | IPX7 waterproof rating |
| Bluetooth Version | 6.0 | Bluetooth 5.3 |
| Latency | - | - |
| Noise Cancellation | Environmental Noise Cancellation (ENC) | ENC noise reduction for clear calls |
Btootos A90 Pro
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|---|---|---|
| Overview | ||
| Bluetooth Version | ||
| 6.0 | Bluetooth 5.3 | - |
| ANC Specs | ||
| Environmental Noise Cancellation | ENC noise reduction technology for clear voice calls | - |
| Gaming Mode | ||
| Supports low-latency mode via Bluetooth 6.0, optimized for gaming | Non-disruptive latency mode (implied by Bluetooth 5.3 optimization) | - |
| Battery Life | ||
| Up to 50 hours with charging case; 6 hours per single charge | 75 hours total with charging case; over 8 hours playback per charge | - |
| Other Connectivity Details | ||
| Bluetooth 5.4 technology, Bluetooth range 10 meters | Range up to 10 meters, stable connection, supports wide device compatibility | - |
| Fast Charging | ||
| Supports fast charging; 1.5 hours to full charge | Supports Type-C fast charging; 1.5 hours for full charge | - |
| Water Rating | ||
| IPX5 waterproof | IPX7 waterproof rating | - |
| Audio | ||
| Driver Type | ||
| Dynamic Driver | 13mm large dynamic driver | - |
| Audio Codec | ||
| Supports SBC, AAC, and aptX codecs | Bluetooth 5.3 supported codecs (likely SBC/AAC, specific codecs not explicitly stated) | - |
| Signature Sound | ||
| Balanced sound profile with enhanced bass and mid-range, soft treble | Vivid high-fidelity sound with powerful bass, mellow midrange, and clear treble | - |
| Noise Cancellation | ||
| Environmental Noise Cancellation (ENC) | ENC noise reduction for clear calls | - |
| Other Audio Features | ||
| Open ear design for situational awareness, sound leakage prevention | High-sensitivity touch controls for playback and volume adjustment | - |
| Battery | ||
| Total Playback with Charging Case | ||
| Up to 50 hours | 75 hours | - |
| Single Earbud Playback | ||
| 6 hours | Over 8 hours | - |
| Charging Time (Earbuds) | ||
| 1.5 hours | 1.5 hours via Type-C | - |
| Charging Time (Case) | ||
| Approximately 2 hours | Not explicitly specified, but likely similar to earbuds, approximately 1.5 hours | - |
| Battery Capacity Details | ||
| Earbuds: 55mAh each; Charging case: 500mAh | Charging case capacity not specified; earbuds equipped with batteries sufficient for 8+ hours each | - |
| Connectivity | ||
| Multi-Point Connectivity | ||
| Supported (connects to two devices simultaneously) | Not explicitly stated, likely not supported | - |
| Fast Pair | ||
| Supported via Bluetooth 6.0 | Supported (implied by quick pairing features) | - |
| Compatible Devices | ||
| Cellphones, Gaming Consoles, Laptops, Tablets | Most Bluetooth-enabled devices including smartphones, tablets, laptops | - |
| NFC Pairing | ||
| Not supported | Not specified | - |
| Charging | ||
| Charging Type | ||
| USB Type-C | Type-C USB | - |
| Battery Indicator | ||
| LED indicators on earbuds and case | LED digital display on the charging case | - |
| Quick Charging | ||
| Yes, 10 minutes charge provides approximately 1.5 hours playback | Yes, 1.5 hours for full charge | - |
| Wireless Charging | ||
| Not supported | Not supported | - |
| Calling | ||
| Mics(Microphones) | ||
| Dual microphones with ENC noise cancelling | Built-in high-quality microphone with ENC noise reduction | - |
| Other Calling Features | ||
| Crystal-clear call quality, wind noise reduction | Clear voice communication, noise suppression | - |
| Special Features | ||
| Touch Controls | ||
| Yes, customizable touch controls | Yes, for play/pause, answer/reject, volume, switch tracks, activate voice assistant | - |
| In-Ear Detection | ||
| Supported (auto pause/resume when earbuds are removed/inserted) | Not explicitly stated | - |
| Voice Assistant | ||
| Supports voice assistants like Siri, Google Assistant, Alexa | Supported via touch controls | - |
| Case Design | ||
| Compact, lightweight, with a matte black finish | Compact charging case with LED digital display | - |
| Ear Hook Design | ||
| Yes, ergonomic ear hook for secure fit | Yes, ergonomic TPE material ear hooks for secure fit | - |
| Build & Design | ||
| Form Factor | ||
| Open ear clip-on | In-ear wireless earbuds with over-ear hooks | - |
| Headphone Type | ||
| Wireless open ear earbuds | True wireless in-ear earbuds | - |
| Color Options | ||
| Black | Not specified | - |
| Material | ||
| Plastic, Metal, Rubber | Elastic TPE for ear hooks, likely plastic and silicone for earbuds | - |
| Weight | ||
| 5.3 grams per earbud | 5.1 ounces | - |
| Noise Cancellation | ||
| Active Noise Cancellation(ANC) | ||
| Environmental Noise Cancellation (ENC) | ENC noise reduction for calls; no mention of active ANC for ambient noise | - |
| Noise Cancellation Modes | ||
| Environmental Noise Cancellation mode | Not specified | - |
| Transparency Mode | ||
| Supported (ambient awareness mode) | Not specified | - |
| More Features | ||
| Other Features | ||
| Lightweight, waterproof, secure fit, sound leakage prevention | LED power display, IPX7 waterproof, ergonomic sports design | - |
| App Support | ||
| No dedicated app required, controls customizable via touch | Not specified | - |
| Voice Prompts | ||
| Yes, voice prompts for pairing and battery status | Likely supported (common in such earbuds), not explicitly confirmed | - |
| Frequency | ||
| 20Hz - 20kHz | Not specified | - |
| Transmission Range | ||
| 10 meters | Up to 10 meters | - |
| Smart Features | ||
| Sleep Mode | ||
| Supported (auto power off when not in use) | Not specified | - |
| Health Monitoring | ||
| Not supported | Not supported | - |
| Find My Earbuds | ||
| Supported via Bluetooth connection | Not specified | - |
| Customization Options | ||
| EQ Customization | ||
| Not supported via app, but manual EQ adjustment possible on connected device | Not specified | - |
| Ear Tip Sizes | ||
| Includes multiple ear tip sizes (S, M, L) | Three sizes included | - |
| Firmware Updates | ||
| Not supported via app | Not specified | - |
| Customizable Controls | ||
| Yes, via touch controls | Yes, via touch controls | - |
| Controls | ||
| Button Controls | ||
| Touch controls for play/pause, skip, call answer/end, voice assistant | Touch controls for multiple functions | - |
| Voice Assistant Control | ||
| Supported | Yes | - |
| Music Controls | ||
| Play/Pause, Next/Previous track, Volume up/down | Play/Pause, next/previous, volume adjustment | - |
| Touch Sensitivity | ||
| Adjustable via manual settings (if supported by device) | High sensitivity touch technology | - |
| Customizable Controls | ||
| Yes | Supported via touch controls | - |
| Box Contents | ||
| Earbuds | ||
| 1 pair of open ear clip-on earbuds | Yes | - |
| Charging Case | ||
| Yes, with USB Type-C cable | Yes | - |
| USB Cable Type-C | ||
| Included | Yes | - |
| User Manual | ||
| Included | Yes | - |
| Warranty Card | ||
| Included | Yes | - |
| Extra Earmuffs | ||
| Not applicable (ear tips included for in-ear fit, if any) | Yes, three sizes | - |
| Launch Date | ||
| Release Date | ||
| July 22, 2024 | July 21, 2025 | - |
| Status | ||
| Available | Available | - |
| Warranty | ||
| Product Warranty | ||
| 1-year limited warranty | Not explicitly specified | - |
Which is Better: King Lucky i121 AI Tranlation or Sajawass BX31?
Based on the comparison, here are the benefits of King Lucky i121 AI Tranlation and Sajawass BX31 provided by nkbgaming.com/earbuds.
Pros of King Lucky i121 AI Tranlation:
- Offers a newer Bluetooth version (6.0) compared to Bluetooth 5.3 (A newer Bluetooth version ensures better connectivity, faster pairing, and improved power efficiency.)
Pros of Sajawass BX31:
- Offers better Water Rating (IPX7 waterproof rating vs IPX5 waterproof) (A higher IPX rating means better water resistance, providing more protection against splashes and sweat.)
King Lucky i121 AI Tranlation
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Sajawass BX31
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