Charging the Armor 21 is facilitated by its 30W charging capability, delivering a balance between charging speed and efficiency. Given the significant battery capacity, it’s understandable that longer charging times are necessary to fully replenish the device. Approximately 38% of the battery can be charged in 30 minutes, 82% in around 80 minutes, and a complete 100% charge takes about 2 hours. Ulefone Armor 21: Conclusion In terms of ruggedness, the Ulefone Armor 21 boasts impressive certifications. With IP68/IP69K and MIL-STD-810G military specifications, this smartphone is engineered to endure the challenges posed by water, dust, and harsh conditions. This comprehensive protection ensures that the Ulefone Armor 21 is not only a capable device but also a reliable companion for those who rely on their smartphones in demanding scenarios. Display Puhelimesta löytyy lisäksi kätevä uSmart-liitin Ulefonen lisäosille, neljä tuttua eri paikannusjärjestelmää, NFC-tuki maksamiseen, ja kasvojentunnistus sekä sormenjälkitunnistus. Ulefone Armor 21 onkin loistava valinta heille, jotka haluat suorituskykyä, tehokkuutta, ja loistavaa toimintaa mitä ankarimpiin olosuhteisiin! A critical aspect of the Ulefone Armor 21’s usability lies in its substantial battery capacity of 9600mAh. This colossal battery ensures that the device can function autonomously for up to three days without requiring a recharge, based on typical usage.

I did not test fingerprint reader or faceID, someone I sold a different ulefone (18T) to said it was really fast with the fingerprint reader though. Not sure if its the same reader in these different phones. One of the standout features of the display is its high refresh rate of 120 Hz. This elevated refresh rate contributes to incredibly smooth animations, enhancing the overall fluidity of the user interface. Notably, the system is designed to dynamically adjust the refresh rate, intelligently lowering the frame rate when necessary. I'd send some photos I took with the one I sold to show you guys camera quality but I didn't save them

The dedicated night vision camera, with its 24MP sensor (OV24A1B) and paired with two infrared LEDs, excels at illuminating scenes in low-light conditions. This feature is particularly effective indoors, but it also proves its usefulness for capturing subjects at a distance in outdoor settings.

The main camera boasts a substantial 64MP sensor (Sony IMX686) with a wide ƒ/1.9 aperture. This combination allows for detailed and sharp photographs, with colors being rendered beautifully. Just above this button is the tri-SIM slot, its design optimized for easy access without the need for a SIM card ejector tool—a user-friendly enhancement.

Kiihtyvyysanturi, valoisuussensori, etäisyyssensori, painovoima-anturi, geomagneettinen anturi, Gyro-sensori, Coulomb-laskuri, askelmittari, ilmanpaineanturi, infrapuna-anturi The 122dB speaker is decently powerful, which you would probably expect considering the size of it. The volume levels it can reach are astronomical—potentially even hearing-damaging. You should also look out for trying to use your phone in a quiet setting, as even on the lowest volume, it's still annoying loud without a third-party volume app. Ulefone has taken a practical approach to software, ensuring that the device is free from unnecessary bloatware and intrusive apps. Instead, the system includes a useful selection of tools and options, allowing users to customize their experience according to their preferences. Ulefone Armor 21 giver masser af plads med 12 GB RAM, der kan udvides med yderligere 8 GB virtuel hukommelse, hvis det er nødvendigt, hvilket betyder, at den bruger sin interne lagerplads som ekstra RAM. Med 256 GB intern hukommelse kan den rumme alle dine apps, filer, fotos og videoer. Ud over den generøse interne hukommelse understøtter Ulefone Armor 21 også ekstern hukommelse via et microSD-kortspor. Another standout feature is the built-in infrared transmitter, allowing users to utilize the smartphone as a versatile remote control for various devices.