BQ34Z100-G1: lead acid battery - monitoring using shunt resistor

Hi,

I'm looking at options to monitor the current charge/discharge and the voltage of lead acid battery (high capacity, 12V). I found BQ34Z100-G1 chip (Multi-Chemistry Impedance Track Standalone Fuel Gauge)  and on the other hand INA219 (26-V, Bidirectional, Zero-Drift, High-Side, I2C Out Current/Power Monitor). The latter one seems to be much simpler. My question is - what's the difference between them? It looks to me that in that case they both do the same. Or is there something that one of them do better?

Best regards,

Dominik