













📱 Rugged power meets next-gen tech — never miss a beat or a moment!
The Ulefone Armor 21 is a rugged smartphone engineered for professionals who demand durability and high performance. Featuring a super loud 122dB Infinite Halo speaker, a 64MP main camera with advanced 24MP night vision, and a massive 9600mAh battery, it runs on the powerful MediaTek Helio G99 chipset with 16GB RAM and 256GB storage. Certified IP68/IP69K and MIL-STD-810H, it withstands harsh environments while delivering a smooth 6.58-inch FHD+ 120Hz display experience on Android 15. Additional perks include IR blaster, NFC, customizable keys, and a professional uSmart expansion connector for specialized tools.


















| ASIN | B0CDGJQZ3C |
| Audio Jack | 3.5 mm |
| Batteries | 1 Lithium Polymer batteries required. (included) |
| Battery Capacity | 9600 Milliamp Hours |
| Battery Power Rating | 9600 Milliamp Hours |
| Best Sellers Rank | #121,121 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #2,638 in Cell Phones |
| Charging Time | 19.2 Hours |
| Color | Black |
| Connectivity technologies | NFC |
| Customer Reviews | 4.1 4.1 out of 5 stars (125) |
| Date First Available | August 28, 2023 |
| Form Factor | Touch Screen |
| GPS | True |
| Human Interface Input | Touchscreen |
| Item Weight | 10.6 ounces |
| Item model number | us-arm 21 |
| Manufacturer | Ulefone |
| Memory Storage Capacity | 256 GB |
| OS | Android 15 |
| Other camera features | Rear |
| Other display features | Wireless |
| Phone Standby Time (with data) | 522 hours |
| Phone Talk Time | 44 Hours |
| Product Dimensions | 6.93 x 3.21 x 0.71 inches |
| RAM | 16 GB |
| Ram Memory Installed Size | 8 GB |
| Scanner Resolution | 720 x 1440 |
| Special features | 122dB Halo Speaker, IP68/IP69K, IR Blaster, Infinite Halo, MIL-STD-810H Standards |
| Standing screen display size | 6.58 Inches |
| Weight | 300 Grams |
| Whats in the box | AC power charger (100~240V /US plug), Data cable (100cm), Protective Film (Pre-installed), SIM needle & Lanyard, Screen Protector |
| Wireless communication technologies | Cellular, NFC |
S**D
Heavy but you get used to it 💪
It's finally time to upgrade from my Blu G90 Pro, so my review is in comparison to my old phone running Android 10. Purchased two, so my husband has one as well. I got this mil spec phone more for him because he's always dropping his phone and breaking the screen cover. However it's got features I like as well. I like for us both to have the same model so if there's an issue I can compare the two easily. Things I like: Battery life - lasts all day and I'm a heavy user of apps. Customizable side switch - you can choose three different settings depending on if you push the button once, twice or long press. I have mine set to open Gmail on one click ( with phone unlocked), flashlight with double click which is handy when I need it quickly and it works with the phone locked. USB port and 3mm jack are covered to keep dust and water out. Accessory charging cradle recommended because ports are covered. Cradle is short, so there is room for a pop socket mid back of the phone if you need it. Camera is good, night vision is awesome 😎 Android 14 ROM with minimal bloatware. Some of the preinstalled apps are actually useful especially if you are a maker. Things like camera measuring, protractor and level. There's an attachment connector on the side for other tools as well like a scope sold separately. Rotation is fast with the RAM speed. Overall the phone is very responsive. Bluetooth works well with multiple devices running simultaneously. The meh - Ring light is cool but it doesn't work all the time for me. I might have to play with the settings. Dura speed can suppress apps in the background and if you need notifications from them you need to turn the switch on in dura speed to allow the apps to run normally. It might take trial and error to figure out what apps you need to allow. Volume settings are touchy and it's hard to get the volume just right. The sound is either too quiet or too loud all the time. Sound quality is average. I'd say it sounds like a mid priced Bluetooth speaker. Phone is heavy! But the weight I'm sure is because of the shock protection. I got used to the weight in a couple of days of use. The bad - Not really much to say here and most of the bad is related to Android 14 not the phone. Android 14 settings are a little more difficult to find than in prior versions. I've been an Android user since 2.0 cupcake so I've used almost every release. When swiping sometimes buttons get activated because they are very sensitive. There is a function where I can close all open apps, but without the on screen square close, home and back buttons at the bottom it's hard to find it. I'm not sure how to activate the feature. I've seen it but not sure what I did to make it come up. Somehow Android 14 dropped the link on home screen widget which was a feature I still want. So in all, it's a solid phone. The only thing I wish it had was 5G, but that's ok for now. I don't see 4G going anywhere anytime soon.
R**O
Brother loved it.
Order this Phone for my brother, he loved it. And at the end is all that matters, works like any other Android phone. Good quality, it’s a bit Heavy for my taste, buts not for me. It definitely works for him.
M**N
Muy bueno excelente le dura mucho la batería
B**A
Mala calidad en la imagen y en las fotos.
A**O
Excelente
Excelente producto
C**9
Spam
Filled with unneeded apps installed as system apps which makes it impossible to uninstall. Only one of the 3 were able to be disabled. Dobest Search cannot be disabled and wants to update via Google Play. Dobest Security was able to be disabled. And Clear Master from Dobest cannot be removed or disabled.
I**Y
READ MY ENTIRE REVIEW BEFORE MAKING A PURCHASE!
So first off this phone is nice and loud. I can actually hear the speakerphone when I am driving and it is nice. The picture quality in fhd is amazing with vivid colors that are very captivating. Camera quality is nice and even features an underwater camera. The screen protector has broke on my phone already but that's because I feel a bit more careless because this phone is so tuff it came with a sticker on it that said in a round about way.. "if you wish to perform an underwater test please make sure you are able to shake the water and or sand out of the speaker and crevices before performing a durability test by running it over with a bicycle or motor bike multiple times to test for strength and endurance please." Lol I couldn't believe it when I read it. I have never had a phone screen sticker on any of my new phones say that. How bout you??? Also the memory is amazing. The processor is out of this world lightning fast. It has a slight different layout than what I am used to having with the typical android. So has taken some getting used to but definitely worth the money. But because it has so many features this thing weighs a ton. About the weight of a small brick tbh. That's another reason why I keep dropping it. Also it has way cooler features than my husband's iPhone 16 however you cannot purchase any sort of case for the thing to protect it from scuffs and also to make it look pretty of course. Another thing is that it won't fit the standard phone stand of anysort because of th speaker layout on th back and the awkward thickness. But you can always spend all your money on a ulephone phone stand off of their official website. On another note which is the worst part about this phone and maybe I just haven't figured out why it's not is the fact that I can't use a fast charger on my phone and it takes forever and I mean forever to charge. And the battery doesn't last as long as it says. It's like a normal phone and only lasts a day maybe a day and a half. But hey! At least you can reverse charge other peoples phone with your phone! But then you have to take all that time to charge it up again. Lol so keep all that in mind when purchasing this phone.
B**E
Works great, but too heavy for me
Phone was great - but unfortunately it was so heavy I had to get something lighter. It weighed my hand and my handbag down.
R**Z
Muy buena opción si tienes manos de estómago, se lo compré a mi hijo y le ha durado bastante considerando que todos los celulares los destruye bastante rápido, con este ya tiene más del año y aún está completo sin daños evidentes le funciona todo y la batería le sigue durando mucho tiempo obvio no igual que nuevo pero aún le dura más de un día sin problema.
B**0
Mut zum Gewich dachte ich probiere ich mal das robuste rugged Smartphone Ulefone Armor 21 aus. Das Gerät ist echt schwer das muss einem klar sein jedoch kommt man mit diesem Riesen Akku auch mal ganz locker 2 oder 3 Tage aus. Wie immer sind die coolen Software Apps integriert und ganz wichtig war es muss ein Radio haben wo man nicht erst Kopfhörer als Antenne anstecken muss. Das geht hier sehr gut mit gutem Klang denn der integrierte Lautsprecher macht ordentlich Rabatz auf der Baustelle da benötigt man nicht zusätzlich ein Radio. Laut und deutlich schallert die Musik heraus natürlich übersteuert er auch wenn es zu laut ist und viel Bass hat er auch nicht aber es ist ein perfektes all in one. Der absolute Meilenstein ist die Infrarot Kamera auch wenn die Qualität Nachts nicht hervorragend ist reicht es um mal eben im dunkeln 3 bis 4 Meter zu sehen. Leider geht es nur im Foto Modus im Video Modus wird infrarot nicht unterstützt. Der leuchtende Ring ist echt cool und passt zum Rhythmus der Musik aber auch zu Push Benachrichtigungen. Ein weiterer Vorteil ist dann noch die Led vorn über dem Display die euch anzeigt wann eine Nachricht angekommen ist. Ich habe euch mal ein paar Bilder angehangen damit ihr seht wie gut die Kamera ist bei Nacht und am Tage. Klare Empfehlung von mir wenn man viel Speicher einen großen Akku und eine gute Kamera benötigt und einen Lautsprecher der auch direkt Radio laut wiedergeben kann. Und zu guter letzt das Gewicht muss einem echt egal sein
N**E
Am Donnerstag den 24.August bestellt. Am Freitag den 25.August erhalten. Danke für die schnelle Lieferung. Ich bin sehr begeistert von dem Handy. Ich habe gleich den schönen Aussicht aus meinen Fenstern und Balkon auf zwei Mythen Bergen Foto gemacht. Es macht mega schöne Fotos. Der Handy nimmt sehr gut jedes Geräusch auf. Es ist Hammer 🥰🤗
C**N
A ver en realidad si le das uso intensivo la batería de 9000 no es nada, tienes que cargarlo dos veces al día si lo tienes usando en face, musica, jugando cod, fifa, pokemon. Se traba en algunos juegos pesados, las notificaciones son estorbosas salen a media pantalla, en cuanto a el uso cotidiano es buen funcionamiento fluido, la visión nocturna esta chida, se ve resistente, el volumen de la bocina tampoco es brutal es más fuerte que uno normal pero hasta ahí, el halo de luz se ve chido pero hasta mucha batería. Es bastante configurable, es rápida la carga de batería 🔋 la pantalla tiene buen brillo, es muy pesado, el control de tele funciona bien. Para juegos le doy un 8 para música un 8 y en general 8/10. Actualización : después de ya bastante uso debo agregar que si funciona más chido con videojuegos que necesitan mucho consumo, por ejemplo jugando bien diablo o cod mobil, si aguanta dos o tres horas y aún le queda batería para acabando de jugar seguir viendo Facebook, se calienta algo pero no excesivo. En la sopciones hay que subir a 120 hz la pantalla para que de mejores prestaciones. Lo metí a la bañera y sin problemas sobrevivió, solo deje secar la bocina. Los juegos se escuchan bajito con audífonos.
S**T
Ich habe es wegen Akkuleistung, Lautsprecher und Robustheit gekauft. Ich bin sehr zufrieden. Man ist das laut!! Akkuleistung super. Ich bin sehr zufrieden!
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