SMOK acclaimed Stick family launched two delicate stick devices: SMOK Stick N18 AIO Pod Kit and SMOK Stick R22 AIO Pod Kit.

Differences

1. Battery
SMOK Stick N18 Pod Kit works with 1300mAh built-in battery with 5 level adjustable output(9W-15W-20W-25W-30W). SMOK Stick R22 Pod Kit is powered by 2000mAh built-in battery with 7 levels adjustable output(10W-15W-20W-25W-30W-35W-40W). 

2. Pod capacity
SMOK Stick N18 has 3ml cartridge, while SMOK Stick R22 has 4.5ml Pod.

3. Coils
SMOK Stick N18 is compatible with SMOK Nord Series Coils, while SMOK Stick R22 is compatible with SMOK RPM Series Coils.

SMOK Stick N18 SMOK Stick R22
Size φ18* 145mm φ22* 135mm
Battery capacity 1300mah 2000mah
Output 9-30W
(9W-15W-20W-25W-30W)
10-40W
(10W-15W-20W-25W-30W-35W-40W)
Standby Current < 50uA
Input Voltage 3.3V-4.2V
Output Voltage 2.0V-4.0V
Resistance Range 0.5ohm-3.0ohm 0.4ohm-3.0ohm
Charging Voltage 5V±0.2V
Charging Current 0.75A (Max)
Overcharge Voltage 4.3V±0.05V
Overdischarge Voltage 2.4V±0.03V
Overcharge Current 1.0A±0.3A
Capacity 3ml 4.5ml
Resistance Nord Mesh 0.6ohm Coil
Nord Regular 1.4ohm Coil
RPM Mesh 0.4ohm Coil
RMP DC 0.8ohm MTL Coil

Similarities

1. Appearance
SMOK Stick N18 & Stick R22 are all-in-one stick device with delicate pattered finishes. Both of them are constructed of high-strength stainless steel for subtle glow and smooth feel.

2. Output adjustment
Both of them can ratate the power regulator at the bottom of the device to adjust the output wattage.

3. Airflow adjustment
SMOK Stick N18 & Stick R22 can adjust airflow by rotating air control ring at the top of the device through 8 small air holes.

4. Multi-colored LED light indicator
Both of them features fire button with LED lights to show battery life(Red <30%, Orange 30-70%, Green >70%). 

5. Type-C charging( Max 0.75A)
SMOK Stick N18 & Stick R22 adopt Type-C charging with max 0.75A charging current.

6. Visible pod, top filling design
Both of them has pod with window to show clear e-juice level. And SMOK Stick N18 & Stick R22 include replaceable drip tip(compatible with 510 drip tip) and support top filling design.

Which one do you prefer? Choose one to go with your style and needs.