Ulefone Armor 21 Review

22 Juillet 2023, 14:41:44

Ulefone Armor 21 Review
You can buy Ulefone Armor 21 at a promotional price from Amazon Italy, Amazon Germany, Ulefone's Official AliExpress Store or Ulefone's Official Website Store.

Battery Tests

Ulefone Armor 21 packs a 9600 mAh Li-Pol battery with 33W fast charging support and 10W dock charging. It arrives with a 33W charger in the box and a thick red USB-C to USB-C cable. All battery tests we run on the devices we review are developed by us and performed with the screen of the device being calibrated to 200 cd/m2. Battery-saving features are disabled. We've tested an identical or similar combination of a display, refresh rate, chipset, and battery, so we've built a good base for making comparisons. All test results and comparisons are below.
Charging (2 hours and 16 minutes)
The battery of our Armor 21 was charged in full for 2 hours and 16 minutes with the provided USB data cable and charger. The charging process is relatively steady from the start until the battery reaches 60% of its charge. It then starts to slow down but the more pronounced slowing is after the battery regains 80% of its charge and even more so - after 90%. The battery temperature starts at 29°C and in 35 minutes increases to 46-47°C. It stays there for 15 minutes and begins to decrease, measuring 36°C at the end.
Browsing at 60 Hz (23 hours and 34 minutes)
During our intensive browsing test, the battery of our Armor 21 lasted for 23 hours and 34 minutes - that's 2 hours less than the result of the Power Armo 19. The discharging process goes steadily until the battery drops to 7% of this charge and slows down a bit after this point. The battery temperature starts at 27°C. Reaches 30°C in half an hour and stays at this level for 19 hours. After that, it goes up to 31°C and remains at this level until the end.
1080p Video at 60 Hz (25 hours and 37 minutes)
1920x1080, 30 fps, H.264, 20Mbps bitrate
The video test for battery life uses a 1080p video at 30 fps with a ~20Mbps rate is used. Our review unit's score is 25 hours and 37 minutes. The discharging process follows the same pattern observed during the browsing test. The battery temperature starts 32°C level, increases to 35°C after 1 hour, stays at this level for 7 hours, then gradually drops to 32°C at the 15th hour and begins increasing again only to reach 36°C at the end.
2160p Video at 60 Hz (21 hours and 41 minute)
3840x2160, 30 fps, H.264, ~55 Mbps bitrate
The 4K video battery life test uses a 2160p video at 30 fps with a ~55 Mbps rate. In this test, the battery of Ulefone Armor 21 lasted for 21 hours and 41 minutes. The discharging process curve is the same as the ones of the previous tests. The battery temperature starts at 30°C and increases to 35°C in 45 minutes. After that, it gradually goes up to its peak of 36°C, remains at this level for four hours, and then gradually drops down to 34°C in the end.
3D Graphics/Gaming 60 Hz (14 hours and 8 minutes)
YEBIS OpenGL ES 3.0 3D Tech Demo
For the 3D Graphics/Gaming test, the YEBIS OpenGL ES 3.0 3D Tech Demo is used. The result from this test is 14 hours and 8 minutes which is close to that of other Ulefone Armor smartphones with the same display, chipset, battery, and charging. The discharging process curve does not offer any surprises - the first 40 minutes are slow and then discharging speeds up maintaining a steady pace until the end. The battery temperature starts at 32°C and in 1 hour reaches 39°C remaining at this level until the end.
Browsing at 60 Hz
Ulefone Power Armor 19
26:38 (9600 mAh)
Doogee V10
26:16 (8500 mAh)
Doogee S80
25:42 (10080 mAh)
Ulefone Power Armor 16S
25:36 (9600 mAh)
Oukitel RT2
25:28 (20000 mAh)
Oukitel K12
25:11 (10000 mAh)
Ulefone Power Armor 19T
24:35 (9600 mAh)
iiiF150 R2022
23:53 (8300 mAh)
Ulefone Armor 21
23:34 (9600 mAh)
Blackview P10000 Pro
23:27 (11000 mAh)
Oukitel WP17
23:12 (8300 mAh)
Doogee BL9000
22:33 (9000 mAh)
Doogee S97 Pro
22:26 (8500 mAh)
Doogee BL12000 Pro
22:24 (12000 mAh)
Oukitel WP27
21:58 (8500 mAh)
Oukitel WP30 Pro
20:23 (11000 mAh)
Ulefone Power Armor 14
19:49 (10000 mAh)
1080p Video
Ulefone Power Armor 19
26:50 (9600 mAh)
Ulefone Power Armor 16S
26:28 (9600 mAh)
Blackview P10000 Pro
26:26 (11000 mAh)
Doogee S97 Pro
26:21 (8500 mAh)
Oukitel WP30 Pro
26:15 (11000 mAh)
Doogee V30
26:09 (10800 mAh)
Oukitel WP17
25:46 (8300 mAh)
iiiF150 R2022
25:45 (8300 mAh)
Ulefone Armor 21
25:37 (9600 mAh)
Oukitel WP27
24:44 (8500 mAh)
AGM H5
24:06 (7000 mAh)
Doogee V20
23:18 (6000 mAh)
Cubot King Kong 3
23:10 (6000 mAh)
Oukitel K10000 Max
22:46 (10000 mAh)
Doogee N40 Pro
22:44 (6380 mAh)
Blackview BV6600
22:42 (8580 mAh)
Ulefone Power 3
22:41 (6080 mAh)
2160p Video
Oukitel WP33 Pro
28:00 (22000 mAh)
Ulefone Power Armor 18T
26:28 (9600 mAh)
Doogee V30
24:33 (10800 mAh)
Ulefone Power Armor 19
23:51 (9600 mAh)
Doogee S100
23:42 (10800 mAh)
Ulefone Power Armor 19T
23:01 (9600 mAh)
Oukitel WP30 Pro
22:51 (11000 mAh)
iiiF150 R2022
22:02 (8300 mAh)
Ulefone Armor 21
21:41 (9600 mAh)
nubia Z60 Ultra Photographer Edition
21:30 (6000 mAh)
Oukitel WP27
21:01 (8500 mAh)
Doogee S97 Pro
21:01 (8500 mAh)
Ulefone Armor 9
16:56 (6600 mAh)
Google Pixel 8 Pro
16:22 (5050 mAh)
Ulefone Armor 10 5G
15:46 (5800 mAh)
Xiaomi Mi A3
15:42 (4030 mAh)
Ulefone Armor 11T 5G
15:38 (5200 mAh)
3D Graphics/Gaming
Ulefone Power Armor 18T
15:57 (9600 mAh)
Ulefone Armor 3
15:41 (10300 mAh)
Cubot KingKong 5 Pro
15:08 (8000 mAh)
Doogee S80
15:01 (10080 mAh)
Doogee S86 Pro
14:52 (8500 mAh)
Doogee V10
14:46 (8500 mAh)
Ulefone Power Armor 19
14:35 (9600 mAh)
Doogee BL9000
14:33 (9000 mAh)
Ulefone Armor 21
14:08 (9600 mAh)
Ulefone Power Armor 14 Pro
13:54 (10000 mAh)
Oukitel K7
13:20 (10000 mAh)
Xiaomi Mi Max 2
13:16 (5300 mAh)
Ulefone Power Armor 13
13:16 (13200 mAh)
Blackview BV6600
13:11 (8580 mAh)
Ulefone Power Armor 19T
13:00 (9600 mAh)
Oukitel WP27
12:45 (8500 mAh)
Cubot KingKong 8
12:39 (10600 mAh)
Infrared thermography
The above photos of the Ulefone Armor 21 are taken with a FLIR thermal camera. The left photo shows the device's temperature during charging. The hottest part during this process is the center of the upper half of the device with a temperature of 42.7°C. The other points of reference are around 41°C. The second photo depicts the device's temperature during our 3D battery life test. In this case, the hottest part is the center of the chin with a temperature of 41.8°C. The other points of reference are around 37-39°C.

Battery Settings

The Battery menu contains the usual elements while preserving Ulefone's design of the system menus. The first element is the battery status followed by the Battery Usage date. The you get the Battery Saver toggle that can be activated manually or scheduled. It can also automatically switch off when the battery's charge goes above 90%. You can also schedule it to turn automatically on when the battery drops to a certain percentage that you choose. The Battery Manager detects apps that are draining the battery significantly and issues a notification with the option for you to restrict those apps. You can always toggle off this option. Finally, there's the battery percentage toggle that displays/hides the charge level in the battery icon on the status bar.

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