No. This is a GSM mobile phone. It cannot support CDMA network.
Samsung Metro is the better phone if we compare the specifications.
01) Metro XL does have 2MP front camera while Nokia 3310 does not have front camera.
02) Metro XL comes with 2.8 Inch display while Nokia 3310 has 2.4 Inch display.
Both phone comes with standard 1 Year brand warranty but Nokia 3310 comes with replacement warranty.
No. You cannot use whatsapp in Samsung Metro XL.
Yes, Samsung Metro XL is a dual sim mobile phone.
Yes, Metro XL supports T9 type.