Perhaps one of these 1.44" SPI TFT displays, they're often advertised as a Nokia 5110 replacement as they're pin compatible.
There are also these 0.96" OLED Displays if you're looking for low power as you say. I believe Espruino has suport for both these types of displays as the first runs on the ILI9163 Driver and the OLED uses the SSD1306.
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
Perhaps one of these 1.44" SPI TFT displays, they're often advertised as a Nokia 5110 replacement as they're pin compatible.
There are also these 0.96" OLED Displays if you're looking for low power as you say. I believe Espruino has suport for both these types of displays as the first runs on the ILI9163 Driver and the OLED uses the SSD1306.