diff --git a/esphome/components/sx127x/sx127x.cpp b/esphome/components/sx127x/sx127x.cpp
index 773ac10503..167d3772cb 100644
--- a/esphome/components/sx127x/sx127x.cpp
+++ b/esphome/components/sx127x/sx127x.cpp
@@ -170,7 +170,7 @@ void SX127x::configure() {
   this->write_register_(REG_FIFO_THRESH, TX_START_FIFO_EMPTY);
 
   // config bit synchronizer
-  if (this->sync_value_.size() > 0) {
+  if (!this->sync_value_.empty()) {
     uint8_t polarity = (this->preamble_polarity_ == 0xAA) ? PREAMBLE_AA : PREAMBLE_55;
     uint8_t size = this->sync_value_.size() - 1;
     this->write_register_(REG_SYNC_CONFIG, SYNC_ON | polarity | size);
@@ -299,15 +299,15 @@ void SX127x::dump_config() {
   ESP_LOGCONFIG(TAG, "  Preamble Polarity: 0x%X", this->preamble_polarity_);
   ESP_LOGCONFIG(TAG, "  Preamble Size: %" PRIu8, this->preamble_size_);
   ESP_LOGCONFIG(TAG, "  Preamble Errors: %" PRIu8, this->preamble_errors_);
-  if (this->sync_value_.size() > 0) {
+  if (!this->sync_value_.empty()) {
     ESP_LOGCONFIG(TAG, "  Sync Value: 0x%s", format_hex(this->sync_value_).c_str());
   }
   if (this->modulation_ == MOD_FSK) {
-    static const char *SHAPING_LUT[4] = {"NO_SHAPING", "GAUSSIAN_BT_1_0", "GAUSSIAN_BT_0_5", "GAUSSIAN_BT_0_3"};
-    ESP_LOGCONFIG(TAG, "  Shaping: %s", SHAPING_LUT[this->shaping_ >> 5]);
+    static const char *shaping_lut[4] = {"NO_SHAPING", "GAUSSIAN_BT_1_0", "GAUSSIAN_BT_0_5", "GAUSSIAN_BT_0_3"};
+    ESP_LOGCONFIG(TAG, "  Shaping: %s", shaping_lut[this->shaping_ >> 5]);
   } else {
-    static const char *SHAPING_LUT[4] = {"NO_SHAPING", "CUTOFF_BR_X_1", "CUTOFF_BR_X_2", "ERROR"};
-    ESP_LOGCONFIG(TAG, "  Shaping: %s", SHAPING_LUT[this->shaping_ >> 5]);
+    static const char *shaping_lut[4] = {"NO_SHAPING", "CUTOFF_BR_X_1", "CUTOFF_BR_X_2", "ERROR"};
+    ESP_LOGCONFIG(TAG, "  Shaping: %s", shaping_lut[this->shaping_ >> 5]);
   }
   ESP_LOGCONFIG(TAG, "  PA Pin: %s", this->pa_pin_ == PA_PIN_BOOST ? "BOOST" : "RFO");
   ESP_LOGCONFIG(TAG, "  PA Power: %" PRIu32 " dBm", this->pa_power_);