diff --git a/get-started/csi_recv_router/main/app_main.c b/get-started/csi_recv_router/main/app_main.c
index f028043..89c973a 100644
--- a/get-started/csi_recv_router/main/app_main.c
+++ b/get-started/csi_recv_router/main/app_main.c
@@ -36,6 +36,7 @@
 #include "esp_ota_ops.h"
 #include "esp_https_ota.h"
 #include "esp_partition.h"
+#include "esp_chip_info.h"
 #include "esp_http_client.h"
 #include "driver/gpio.h"
 #include "soc/soc_caps.h"
@@ -1533,13 +1534,21 @@ static int cmd_handle(const char *cmd, char *reply, size_t reply_size)
         const esp_partition_t *running = esp_ota_get_running_partition();
         uint32_t part_size = running ? running->size : 0;
 
+        /* Chip info */
+        esp_chip_info_t chip_info;
+        esp_chip_info(&chip_info);
+        const char *chip_model = (chip_info.model == CHIP_ESP32S3) ? "ESP32S3" :
+                                 (chip_info.model == CHIP_ESP32C3) ? "ESP32C3" :
+                                 (chip_info.model == CHIP_ESP32)   ? "ESP32" : "ESP32xx";
+
         snprintf(reply, reply_size,
                  "OK STATUS uptime=%s uptime_s=%lld heap=%lu rssi=%d channel=%d tx_power=%d rate=%d csi_rate=%d"
                  " hostname=%s version=%s adaptive=%s motion=%d ble=%s target=%s:%d"
                  " temp=%.1f csi_count=%lu boots=%lu rssi_min=%d rssi_max=%d"
                  " csi_mode=%s hybrid_n=%d auth=%s flood_thresh=%d/%d powersave=%s"
                  " presence=%s pr_score=%.4f chanscan=%s"
-                 " nvs_used=%lu nvs_free=%lu nvs_total=%lu part_size=%lu",
+                 " nvs_used=%lu nvs_free=%lu nvs_total=%lu part_size=%lu"
+                 " built=%s_%s idf=%s chip=%sr%dc%d",
                  uptime_str, (long long)up, (unsigned long)heap, rssi, channel, (int)s_tx_power_dbm,
                  s_send_frequency, actual_rate,
                  s_hostname, app_desc->version,
@@ -1556,7 +1565,9 @@ static int cmd_handle(const char *cmd, char *reply, size_t reply_size)
                  (unsigned long)nvs_stats.used_entries,
                  (unsigned long)nvs_stats.free_entries,
                  (unsigned long)nvs_stats.total_entries,
-                 (unsigned long)part_size);
+                 (unsigned long)part_size,
+                 app_desc->date, app_desc->time, app_desc->idf_ver,
+                 chip_model, chip_info.revision, chip_info.cores);
         return strlen(reply);
     }
 
diff --git a/get-started/csi_recv_router/sdkconfig.defaults b/get-started/csi_recv_router/sdkconfig.defaults
index 9057ab6..f40fcf0 100644
--- a/get-started/csi_recv_router/sdkconfig.defaults
+++ b/get-started/csi_recv_router/sdkconfig.defaults
@@ -27,9 +27,9 @@ CONFIG_ESP32_WIFI_AMPDU_TX_ENABLED=
 CONFIG_ESP32_WIFI_AMPDU_RX_ENABLED=
 
 #
-# Compiler options
+# Compiler options (size optimization saves ~75 KB)
 #
-CONFIG_COMPILER_OPTIMIZATION_PERF=y
+CONFIG_COMPILER_OPTIMIZATION_SIZE=y
 
 #
 # FreeRTOS