Celkon A21
The Celkon A21 is a budget-focused device, powered by the Mediatek MT6582 (28 nm), built for basic everyday tasks (2014).
2014 · Entry-level · Android 4.2.2 (Jelly Bean)ⓘ Grades compare this device against others in its own market segment (Budget), not against every device on the site.
⚡ Quick Specs
Size4" · 124.8 x 66.1 x 10.8 mm (4.91 x 2.60 x 0.43 in)
ChipsetMediatek MT6582 (28 nm)
RAM256MB
Storage512MB
Main Camera15 MP
⚖️ Compare With
✓︎ Pros
✓256GB of RAM — plenty for heavy multitasking and keeping many apps open
✓Lightweight at 115.3g — easy to carry
✓3.5mm headphone jack for wired audio without adapters
⊗ Cons
✗Smaller 1,500 mAh battery — may need midday charging
✗Basic Mediatek MT6582 (28 nm) for simple tasks only
✗Lower-resolution 144 PPI screen — visible pixels on close inspection
⚠️ Not ideal for
Heavy usage daysGamingMultitaskingMedia consumption
⚙️ Performance
Chipset
Mediatek MT6582 (28 nm)
Entry-level — basic tasks only
CPU
Quad-core 1.3 GHz Cortex-A7
OS
Android 4.2.2 (Jelly Bean)
RAM
256MB
Heavy multitasking without slowdowns
💻 Display
Sharpness
144 ppi
Pixels visible at normal viewing distance
📷 Camera
Main Camera
15 MP
Capable for everyday photos
🔋 Battery
Capacity
1,500 mAh
May need midday charging with heavy use
📱 Design & Build
Weight
115.3g
Very light — comfortable for long use
Dimensions
124.8 x 66.1 x 10.8 mm (4.91 x 2.60 x 0.43 in)
📶 Network
2G Bands
GSM 900 / 1800 - SIM 1 & SIM 2
❓ Frequently Asked Questions
No, the Celkon A21 does not support 5G — it supports GSM / HSPA.
No, the Celkon A21 does not have NFC.
Yes, the Celkon A21 supports microSDHC expandable storage.
Yes, the Celkon A21 supports dual SIM (Dual SIM (Dual stand-by)).
Yes, the Celkon A21 has a 3.5mm headphone jack.
Speaker setup: Yes.
The Celkon A21 ships with Android 4.2.2 (Jelly Bean).
The Celkon A21 uses microUSB.
The Celkon A21 supports Wi-Fi 802.11 b/g/n.
The Celkon A21 has 4.0, A2DP.
